Does push Gmail require my data connection to be on all the time? If so, how much battery drain does a constant data connection cause?
kgeissler said:
Does push Gmail require my data connection to be on all the time? If so, how much battery drain does a constant data connection cause?
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no. ur using activesync so u have d choice of setting it to manual sync, or interval or immediate (always on)
if ur using edge, expect 8-9 hours.
3g, 6 hours top.
I’d just like to add my 2 cents in this so that people don’t get turned off by push email…
I happen to connect to an Exchange Server via Active Sync for my email. For 14 hrs a day, it’s set to sync “as items arrive” (i.e. push). During the night, I set the sync schedule to “manual”.
I get a moderate amount of emails each day and I have to say that I’ve not notice a substantial battery drain relative to an IMAP connection that polls every hour.
Push email doesn't require a constant connection as if you're always downloading something. It's more of a "pulse" connection. Try to research a bit into exactly how push email works and you'll see what I mean...
There are two ways to push gmail (or two that I've used recently). One is the new gmail sync, which is an Exchange server. Using that method, I was getting about 8 hours of battery.
The other method is the System Seven beta. I used this for a year+ on my Moto Q before gmail sync became available. I don't know how System Seven works -- it's not Exchange and it's not IMAP. But it works. It seems to be more reliable and quicker than gmail sync, at least for now. It never has gmail sync's problem with passing through attachments. On my TP2, with Seven, I can turn Direct Push off in Comm Manager, and I get more than 24 hours of battery. The only funny glitch with Seven is that on the TF3D home messaging tab, in the little envelope on the screen, instead of showing the beginning of the message, it says, "Click to view message." But that's o.k.; I wouldn't read messages on that screen anyway.
I recently switched back from gmail sync to Seven, and for now it's better. I expect that in a short while, gmail sync will iron out some bugs and become more responsive, and maybe I'll switch back.
One feature that neither of them have, and I'm dying for: The ability to synchronize flags, to mark a message as "Follow up" in Pocket Outlook and have it star the message in gmail. Gmail sync allows the flag, and it will sync with Outlook, but not directly with gmail on the web.
System Seven is here: http://community.seven.com/main.php
It's free and seems likely to remain so...
So I am wondering, is it a huge battery drain to use the direct push email function? I just flash a few days ago, and while I have only been thru about 4 cycles on my battery, when I set up my email I am using the exchange sync for email too from google.
Anyone know what is better on the battery? no email push and set up for checking for new email every 30 min or just have the direct push going?
Thanks,
jeff
In the typical scenario, Push is WAY better for your battery juice, especially since you probably do not get mail all the time. For example, if you set the POP retrieval for every 30minutes, then you're going use juice every 30 minutes whether you have mail or not, because just popping your mail account is going to use juice. With push, you only use juice when there is mail.
On the other hand, if you get hundreds of messages a day, everyday, all day, then popping might be better since you could retrieve them in batches.
FWIW, I have 13 e-mail accounts. When I set my XV6800 to POP the maximum number of Outlook Mobile accounts, which is 6 (and that limit sucks, BTW) every 15 minutes, the battery didn't even make it to the end of the work day. When I went to a Push setup, even for ALL 13 accounts, that low battery problem went away.
Hope this helps.
xv-6800 said:
In the typical scenario, Push is WAY better for your battery juice, especially since you probably do not get mail all the time. For example, if you set the POP retrieval for every 30minutes, then you're going use juice every 30 minutes whether you have mail or not, because just popping your mail account is going to use juice. With push, you only use juice when there is mail.
On the other hand, if you get hundreds of messages a day, everyday, all day, then popping might be better since you could retrieve them in batches.
FWIW, I have 13 e-mail accounts. When I set my XV6800 to POP the maximum number of Outlook Mobile accounts, which is 6 (and that limit sucks, BTW) every 15 minutes, the battery didn't even make it to the end of the work day. When I went to a Push setup, even for ALL 13 accounts, that low battery problem went away.
Hope this helps.
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And how did you do that with 13 accounts?
lol. you can only have one email account configured to exchange at any one time!
AMoosa said:
lol. you can only have one email account configured to exchange at any one time!
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I have 5 different e-mail addresses going to one google account (setup to exchange on my phone), so 13 isn't impossible.
Means i don't miss e-mails coz i forgot to check them.
AMoosa said:
lol. you can only have one email account configured to exchange at any one time!
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Use google as your push account and then use the POP retrieval service in google to aggregate your other accounts.
My god Google will rule the world one day! I heard they have a feature coming soon called "Google Charging" that will be AWESOME! lol j/k
xv-6800 said:
In the typical scenario, Push is WAY better for your battery juice, especially since you probably do not get mail all the time. For example, if you set the POP retrieval for every 30minutes, then you're going use juice every 30 minutes whether you have mail or not, because just popping your mail account is going to use juice. With push, you only use juice when there is mail.
On the other hand, if you get hundreds of messages a day, everyday, all day, then popping might be better since you could retrieve them in batches.
FWIW, I have 13 e-mail accounts. When I set my XV6800 to POP the maximum number of Outlook Mobile accounts, which is 6 (and that limit sucks, BTW) every 15 minutes, the battery didn't even make it to the end of the work day. When I went to a Push setup, even for ALL 13 accounts, that low battery problem went away.
gHope this helps.
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so I thank you for your input, it makes sense what you are saying, I am one of the lucky ones ai only have a work email and only one personal email.
my battery is doing much better now after a week. I will stick with the push thill for a while.
thanks too all
jeff
Are you saying that you previously were popping at intervals, and now you're pushing instead, and you see better battery life?
Interesting how the Help on the phone AND on Google's site says the exact opposite! Those morons who wrote that are either complete idiots or they're trying to steer us away from Push for some reason.
karandras24 said:
I have 5 different e-mail addresses going to one google account (setup to exchange on my phone), so 13 isn't impossible.
Means i don't miss e-mails coz i forgot to check them.
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Goes to show how thinking outside the box works wonders, doesn't it?
One thing I do NOT like about using Google for this is that they have a statement that says that they do not guarantee any intervals on their end on POPPING, so it often takes over an hour to receive an e-mail. Verizon's Wireless Sync does the same job but pops every 15 minutes.
I wonder if it would be different if I had the 3rd party accounts automatically forward copies of messages to the gmail accounts. Does Google handle directly sent messages faster?
Edit: Yep, setup my other accounts to forward to my gmail account, instead of having the gmail account POP the other accounts, and now I get pushes within seconds! Yeee-haaaw!
I have configured my email on my Desire and really need my emails sharpish, but dont want to comprise battery as much as possible.
How much of a strain on the battery is activesync compared to me setting up it polling every 5 mins?
Im not fussed about syncing contacts/calendars etc.
Ta
hot-fuzz said:
I have configured my email on my Desire and really need my emails sharpish, but dont want to comprise battery as much as possible.
How much of a strain on the battery is activesync compared to me setting up it polling every 5 mins?
Im not fussed about syncing contacts/calendars etc.
Ta
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I would guess IMAP seeing as with activesync (i think) you need a physical connection which means the phone would draw power from the device anyway.
brummiesteven said:
I would guess IMAP seeing as with activesync (i think) you need a physical connection which means the phone would draw power from the device anyway.
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Sorry, i may have been a little confusing.
I mean Exchange ActiveSync which polls for emails constantly. i will change the title.
I really want to know the answer for this too tbh.
I think IMAP is bad as it actually checks through the mail server, but I heard exchange just sits there and when mail comes in it is notified rather than a manual check every few minutes scanning through everything like imap.
DirectPush (the push technology used by Exchange) involves sending a "keepalive" every 9 minutes, assuming there have been no changes in the meantime. On that fairly rough basis I would guess that polling every 5 minutes would causes a more significant battery drain. But either way, I'd be surprised if your battery lasted a full business day.
Push Activesync lasts a business day easily, wether WiFi, 2G or 3G. Depends what else you are doing with it of course. But either way: the problem isn't ActiveSync
(stupid question alert...) I just wonder is it possible to adjust how often GMAIL app checks for new mail? I prefer GMAIL app in general, but I would be happy if it checkd mail once an hour or so...
Hello all, does anyone know about an email service that pushes your email to your phone free?? thanks alot.
try Gmail. You can set the mobile check your mail more frequently, like push mail
truelied said:
try Gmail. You can set the mobile check your mail more frequently, like push mail
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Is it free?? and where can i download it from.... it's supposed to use only gmail right?? i was actually looking for the one that can send from multiple mail accounts....
You can use any email service like gmail that allows pop3 to check mail frequently (5-15 mins) with the built in outlook email program. No extra downloads. This is quite batter friendly.
If u want true push email, there are a few services which give you a free service. Had checked long back and don't really remember. Google Apps allows push email. You could read further on their site. It would be quite a drain on the battery to be constantly use gprs to be in touch with the email server.
Interesting post/discussion on Blackberry Vs Windows Mobile (push email)
http://www.techatplay.com/?p=482
Why not using a windows live account? With Microsoft live you can set emails to be received as they come in...
dojono said:
Why not using a windows live account? With Microsoft live you can set emails to be received as they come in...
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Is that through activesync (over the air)?
How does it affect the battery life?
Yep, I am using my Windows Live set up to sync as mail is received. It is not through AS, what would be the point??? Battery life is only minimally affected, as the mail is loaded onto your phone as it is received, rather than server being in constant sync state.
How does Windows live work?
enigma1nz said:
Yep, I am using my Windows Live set up to sync as mail is received. It is not through AS, what would be the point??? Battery life is only minimally affected, as the mail is loaded onto your phone as it is received, rather than server being in constant sync state.
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What I am not being able to understnad (and it may purely be due to my not knowing enough) is that how does the phone get to 'know' that there is new mail. As far as I understand, besides manually checking, there are three ways for a phone to get to know about it.
1) POP/IMAP: Checking with a server every "x" minutes on POP3/IMAP (normal outlook experss set to check every "x" minutes)
[Battery life would be affected depending on the "x" minutes and may be much lesser than (2) ]
2) Push Email like Sync: Polling(?) the server to check if there are any changes frequently (probably every few seconds), which produces a push email like effect.
[This may affect battery life significantly]
3) Blackberry like service: Push email via the mobile phone service provider, which may be connected to RIM servers. Where the Server will tell the phone service provider, which in turn will tell the phone about new mail (the mail can subsequently either be delivered to the phone or the phone can check from the server).
[Minimal battery usage, as there is not constant check of email/sync]
How does the phone get to know that there is new email, with Windows live?
I'm actually very curious how Windows Live's push email works too. Anybody have any clue? Searched google till the **** crew, didn't get anything.
I guess what wm does if more like "pull", it's very power consuming. I've been using this service recently, battery life's terribly affected if I choose "push" in schedule settings.
I'm using Valkyrie v7.0 23659 rom, the phone can standby for 7 days (only a few SMS everyday); but with "push mail service", only 1 day (with 30min phone call, 20 SMS and around 10 e-mails)
1) under yr email accounts, choose "as items arrive"
2) turn off data and 3g.if u are on mango. Keep the online chat connected.
3) u will notice that the email settings saying " not up to date" . thats ok and it means all push connections has been turned off .If u want to sync again. Just turn back yr data and 3g again. and yr push accounts will auto sync again
4) yr phone will rest in GSM mode most of the time consuming less power and data connections turned off.
This tip is for those who don't need timely email.
Basically what this does is turn off all connections to email server and data connection to web and act as on demand connectivity. The battery saver in mango only turns off push and msn chat.the connection to web and bytes data flow is still there.its still connected to the web
In case u didn't know when u turn on data , u are actually connected to the internet and there is a constant 2 way flow of bytes like the WiFi card in yr computer. The email app when set to push will check the server . It does not turn off this constant 2 way connection after checking . It only pushes email.
this consumes some power though it's little, over a long standby time , it can eat up a significant battery when u start using the phone phone the battery drains faster .
Magpir said:
1) under yr email accounts, choose "as items arrive"
2) turn off data and 3g.if u are on mango. Keep the online chat connected.
3) u will notice that the email settings saying " not up to date" . If u want to sync again. Just turn back yr data and 3g again. and yr push accounts will auto synnc again
4) yr phone will rest in GSM mode most of the time consuming less power
This tip is for those who don't need timely email.
Basically what this does is turn off all connections to email server and data connection to web and act as on demand connectivity. The battery saver in mango only turns off push and msn chat.the connection to web and bytes data flow is still there.its still connected to the web
In case u didn't know when u turn on data , u are actually connected to the internet and there is a constant 2 way flow of bytes like the WiFi card in yr computer. The email app when set to push will check the server . It does not turn off this constant 2 way connection after checking . It only pushes email.
this consumes some power though it's little, over a long standby time , it can eat up a significant battery when u start using the phone phone the battery drains faster .
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While the theory behind that is correct, and thanks for the tips, there are a few points which aren't 100% correct I think. I've done extensive battery tests with smartphones that allowed it (WinMo and Android) and I think that the most gain from turning 3G off is when you have a non-optimal reception, as it eats more battery than just gsm only, when connecting/dropping/reconnecting/searching.
WiFi in comparison (always depending on signal quality though) eats more battery while transferring data, per second, but can also transfer more data in that second. On idle, WiFi looks to be less consuming.
But both won't be a huge battery drain on idle. That said, when I'm very very low on battery, I do turn off 3G too.
If you leave 3G on, but don't use it (with the battery saver or settings, and leave the phone idle), depending on your signal quality, the drain won't be major.
The push vs interval email check settings are a bit different in every platform. It all comes down on how good the 'push' implementation is and -again- your signal quality of course. This because -while interval check just opens the connection once every 15/30/60 minutes and then downloads emails if available- the push setting tries to keep the connection to the server pretty much alive, or rather it tries to keep the channel open so that the hotmail server can push the emails when they arrive.
This however is implemented differently on every platform. In google gmail in android it is pure perfection. The connection uses close to zero energy to stay alive and has a drop-retry pattern which is very optimized. You can try other email programs, even for gmail, on the same phone and it will come out using a lot more battery for push. I think that developing the server, push system and the client entitles them to optimizing it hehe.
Anyway, on WP7 there are no available battery drain monitors (you know the ones that log or tell you in real time the mA or mAh used) so one can't be sure. Being a very new operating system, I would tend to think push email drains a bit more than what android, which has been optimized for years, does with gmail.
Regardless of this, the drain of push email vs interval check (pull), occurs mostly if you receive emails very frequently. This because being contacted 20 times in 15 minutes to discharge an email from the server, possibly while not always in optimal signal strength, is more heavy than discharging all the 20 emails at once after 15 minutes.
It seems to me that when you manually or automatically lose the data connection, and then regain it, wp7 fetches automatically emails if the interval of time for the check has passed or, of course, if push email is on. This is quite better than what I experienced on android 2.1 where reobtaining the connection didn't always trigger an email check (withouth push). So I tend to leave push off and keep an interval around 30 minutes on wp7, but of course that depends on anyone's needs.
Lastly, I'm not sure if the push email energy use is affected by the entire push framework of wp7. Since pretty much a lot of the desktop relies on push (live tiles, notifications, etc), maybe the system is already busy mantaining the channel open with a single server, or mantaining multiple push channels open don't affect battery life, and thus push email doesn't really affect the battery because of this. Still, usually on smartphones, when push fails because the connection isn't reliable it falls back in a frequent-pull which can eat your battery pretty fast...
All in all, tips are good, but a second battery is best
my understanding is that the "as items arrives" is there for a reason. its the newer MS direct push technology
I believe a connection is set up. And the the phone operates on true push rather than pull ( time interval).Since its the server which 'pushes' the mail and the client (Phone) doesn't have to struggle to retrieve the mail......the only thing running is data connection ( G or 3G) which is always running anyway,
like many stated, it does not necessarily drain the battery because an open connection is set up, wheareas a time based interval when set to very small intervals like 15 minutes will drain yr battery more than an open connection.
Background:
In the past, before Direct Push Technology, devices were required to connect with the server at specified time intervals or they were triggered by SMS messages to re-sync using ActiveSync. This required a lot of system resources, notably bandwidth (needed to remotely connect the mobile device to the server) and battery life (needed to constantly run these lengthy synching processes). Direct Push Technology saves battery life and bandwidth by maintaining an open Internet connection and only downloading items as they change, instead of executing a lengthy synching process. The open Internet connection may be achieved in a number of ways: through connection to the ActiveSync cradle, through the wireless phone service itself (the device does not even have to be in active mode) or by Wi-Fi (the Wi-Fi connection must be open).
Direct Push depends on network conditions that support a long-standing HTTPS request. If the carrier network for the mobile phone or the firewall doesn't support long-standing HTTPS requests, the HTTPS request is stopped. The following steps describe how Direct Push operates when a mobile phone's carrier network has a time-out value of 13 minutes:
A mobile phone issues an HTTPS request to the server. The request tells the server to notify the device if any items change in any folder that is configured to synchronize in the next 15 minutes. Otherwise, the server should return an HTTP 200 OK message. The mobile phone then stands by.
If the server does not respond after 15 minutes, the mobile phone wakes up and concludes that the connection to the server was timed out by the network. The device reissues the HTTPS request, but this time it uses a heartbeat interval of 8 minutes.
After 8 minutes, the server sends an HTTP 200 OK message. The device then tries to gain a longer connection by issuing a new HTTPS request to the server that has a heartbeat interval of 12 minutes.
After 4 minutes, a new e-mail message is received and the server responds by sending an HTTPS request that tells the device to synchronize. The device synchronizes and reissues the HTTPS request that has a heartbeat of 12 minutes.
After 12 minutes, if there are no new or changed items, the server responds by sending an HTTP 200 OK message. The device wakes up and concludes that network conditions support a heartbeat interval of 12 minutes. The device then tries to gain a longer connection by reissuing an HTTPS request that has a heartbeat interval of 16 minutes.
After 16 minutes, no response is received from the server. The device wakes up and concludes that network conditions cannot support a heartbeat interval of 16 minutes. Because this failure occurred directly after the device tried to increase the heartbeat interval, it concludes that the heartbeat interval has reached its maximum limit. The device then issues an HTTPS request that has a heartbeat interval of 12 minutes because this was the last successful heartbeat interval.
The mobile phone tries to use the longest heartbeat interval the network supports. This extends battery life on the device and reduces how much data is transferred over the network. Mobile carriers can specify a maximum, minimum, and initial heartbeat value in the registry settings for the mobile phone.
You'll save a lot of battery power if you just set it to manual rather than "as item arrives". With this enabled, it will keep an open connection between the phone and the email server, so when you receive an email, it will go straight to your phone. While if you set it on manual it will only use 3G/GSM connection when its needed.
3G Connection No Concern with Batt Life
i have to agree, 3G connection has nothing to do with battery life, unless your area is weak in 3G network, which causes the phone to keep switching between 3G & 2G network.
it is interesting to note, if u keep ur phone in standby, you get longer standby time on 2G/Edge network compared to 3G.
BUT, you get better talk time on 3G network.
Why is this so, i have no idea. forgot where i saw this (it was on one of the brochures of a phone i used to have, either my LG Optimus 7, Blackberry Storm 9500 or Nokia 5800..)
btw, wp7 doesnt have Push Email.. nor iphone, android, symbian. the ONLY smartphone that has this, is RIM's Blackberry. This is done by having RIM's server check your emails constantly and forward to your phone as the email arrives (thus the monthly blackberry internet service / Blackberry Enterprise Service license fee to use their server)
vash_h said:
i have to agree, 3G connection has nothing to do with battery life, unless your area is weak in 3G network, which causes the phone to keep switching between 3G & 2G network.
it is interesting to note, if u keep ur phone in standby, you get longer standby time on 2G/Edge network compared to 3G.
BUT, you get better talk time on 3G network.
Why is this so, i have no idea. forgot where i saw this (it was on one of the brochures of a phone i used to have, either my LG Optimus 7, Blackberry Storm 9500 or Nokia 5800..)
)
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Done quite a bit of testing and asked stuff to people who -I think- know this stuff. The end result was exactly like that. 3G is very efficient when used, not so much on idle, but that depends vastly on your signal strength. Anyway, yes disabling the data connection helps saving battery, disabling 3G, not so much. That mostly depends on other factors.
vash_h said:
btw, wp7 doesnt have Push Email.. nor iphone, android, symbian. the ONLY smartphone that has this, is RIM's Blackberry. This is done by having RIM's server check your emails constantly and forward to your phone as the email arrives (thus the monthly blackberry internet service / Blackberry Enterprise Service license fee to use their server)
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I believe we're talking semantics here. Push email, to the best of my knowledge, as a concept is simply a channel (or socket connection) kept open where the mail server can send the email as soon as it has it, instead of waiting for the client to open the connection and pull it (ask for it).
While the classic implementation is BB, Google Gmail push and Hotmail push/Webdav are both push implementation. On the mobile platform push is hard to achieve compared to desktop and that's why it's flexible, it can fall back to frequent pull at times to simulate push. That's true especially when it's not convenient to keep trying having the channel open because the connection comes and goes.
I've spoken for quite a while with an android developer who made one of the most popular gmail alternative clients and he implemented push in it. He said that you have real push there, but you also need to fall back a lot on frequent pull...
Or... you could just use the built in "Battery Saver" feature that is new to Mango...
I **** you not I have gone a whole week on a single charge with my Focus with "Battery Saver" on. Way better than dinking around with toggling your crap on and off all the time. Just set it and forget it.
I have read that hotmail in wp7 uses Microsoft direct push .yes " as items arrive" is direct push. If u choose a time based schedule, its not direct push. its "pull"
For some reason I am seeing better battery life when set to as items arrive .
vash_h said:
btw, wp7 doesnt have Push Email.. nor iphone, android, symbian. the ONLY smartphone that has this, is RIM's Blackberry. This is done by having RIM's server check your emails constantly and forward to your phone as the email arrives (thus the monthly blackberry internet service / Blackberry Enterprise Service license fee to use their server)
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as of 2010, hotmail was implemented with MS newer direct push technlogy found in exchange.
So u are wrong here.
downloaderintruder said:
You'll save a lot of battery power if you just set it to manual rather than "as item arrives". With this enabled, it will keep an open connection between the phone and the email server, so when you receive an email, it will go straight to your phone. While if you set it on manual it will only use 3G/GSM connection when its needed.
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some clarification here.."as item arrives" is the true push. manual is pull and is no different than time interval. The difference is that u are doing it manually
obviously, fetch( pull) opens a connection to the server at specific intervals, whether you have anything to fetch or not ...and that means an internal background process /service is running all the time on the phone even though yr data is transfered at intervals. So it does not mean better battery life
push only opens a connection when the server tells it there is something available. the phone is triggered in these intervals .so how does this save battery life?
there shouldn't be a continuous connection needed. The server should simply send a small data packet to the phone ( yr phone data is "sleeping" or timed out) when it has something to deliver ..which should then trigger the phone to go 'fetch' (pull) it.
So in theory if u dont receive a any email on a day, u don't need to set it to time interval pull email as this will initiate processes thus consuming yr battery life.
email if u receive a hundred emails a day every hour , setting it to "as items arrive" will be still be better than hourly time interval .
In wp7 email account settings if u are using hotmail u will see this setting " as items arrive" . This is the true push technology . This is MS new "Direct Push technology" and it saves battery life by not initiating connections everytime the phone is set to check email in time intervals. It maintains an open connection to hotmail . Direct push only works in Hotmail in wp7 and not yahoo, google or other accounts which will use the older iphone style time interval push email.
this is how it works. What they mean by in open connection is through a unique identifier. this does not drains battery...as no data flow is taking place all the time. only yr Data connection is alive as per usual and even when its sleeping or idling, the phone receives info from Hotmail because hotmail knows where to send this info.
its like a pipe connected from A (phone) to B (hotmail) but no water flowing unless there is a need to.When u have a water to flow, B sends out a "trickle" to A to open up and establish contact and the water flows through. all this is through a unique identifier which B uses on the network . in addition the phone ( A) also periodically sends out trickles to B after studying network conditions. So direct push adjusts to any network conditions when sending out email.
As with time based intervals, the phone from A will connect to B and retrieve the water. with B having no part in it or being uncooperative not to waste A;s time even when there is no water..So if u set the wp7 time interval , u not only dont get timely emails but also wastage process as each time the phone will try to establish the connection again . There is no unique identifier involved. if for some reason the phone could not establish a connection , it try again and again in a loop and eventually returns an error, this has been seen with wp7 time based push repeatedly as an error pops out. and the email will not synchronize again at the next time interval and states " attention required". this means push email in the phone stops workig altogether because something at the other side has changed or expereicning problem
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The problem with push, any push (email, live tile, etc) on mobile, is that your IP address, the technology (wifi or 3g), the infrastructure (firewall, router, etc) and the channel that is used to be reached, can switch quite often, as you lose signal or move from an area to another.
That can cause the phone to use battery in trying to keep the channel to the server alive. Just telling the server 'tell me when there's email' isn't enough. The phone needs to actively try to be reachable from the server, and that can be costly especially in bad reception areas. In your analogy, the problem is that the pipe can be disrupted quite often and needs to be rebuild.
The difference in battery you can see also depends on how many emails you get and how frequently you get them, of course. If you get one email every minute, push will use more battery than pull in any case as the phone will open the connection very often
andycted said:
The problem with push, any push (email, live tile, etc) on mobile, is that your IP address, the technology (wifi or 3g), the infrastructure (firewall, router, etc) and the channel that is used to be reached, can switch quite often, as you lose signal or move from an area to another.
That can cause the phone to use battery in trying to keep the channel to the server alive. Just telling the server 'tell me when there's email' isn't enough. The phone needs to actively try to be reachable from the server, and that can be costly especially in bad reception areas. In your analogy, the problem is that the pipe can be disrupted quite often and needs to be rebuild.
The difference in battery you can see also depends on how many emails you get and how frequently you get them, of course. If you get one email every minute, push will use more battery than pull in any case as the phone will open the connection very often
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the connections ar eopened only when ther eis something to send
other than that the phone sends out heartbeats...
still no push on my wp7..
ok.. i did what you mentioned.. set my hotmail to 'as item arrives', make sure i have good connection to internet by surfing the net on the phone..
Now, i send an email from my gmail to my hotmail account.. 5 minutes passed still no mail.. (via PC)
i now go to emails (the linked email) and hit on 'sync'.. and there you go.. mail is in..
but that, i believe is pull email..
when i do the same test on blackberry, it prompts me within 30 secs ~ 1 minute after sending..
vash_h said:
ok.. i did what you mentioned.. set my hotmail to 'as item arrives', make sure i have good connection to internet by surfing the net on the phone..
Now, i send an email from my gmail to my hotmail account.. 5 minutes passed still no mail.. (via PC)
i now go to emails (the linked email) and hit on 'sync'.. and there you go.. mail is in..
but that, i believe is pull email..
when i do the same test on blackberry, it prompts me within 30 secs ~ 1 minute after sending..
Click to expand...
Click to collapse
There could be a delay at the gmail .
I just Have 3G off (in my country, it doesn't work with the TmoUS HD7 ) and the email I have synced in my phone is one I created specially for the phone, so I don't have all my friend's emails in Contacts..
Magpir said:
There could be a delay at the gmail .
Click to expand...
Click to collapse
nope, no delays at Gmail.i tried it again w Gmail opened in desktop.mail arrive bt not on phone.
Sent from my LG Optimus 7
I have a BB 9800 and my Mozart on v7712 both having the same Exchange account linked. My 9800 usually receives the email notification on average about 1 second faster than my Mozart. So there isn't really much difference.
vash_h said:
ok.. i did what you mentioned.. set my hotmail to 'as item arrives', make sure i have good connection to internet by surfing the net on the phone..
Now, i send an email from my gmail to my hotmail account.. 5 minutes passed still no mail.. (via PC)
i now go to emails (the linked email) and hit on 'sync'.. and there you go.. mail is in..
but that, i believe is pull email..
when i do the same test on blackberry, it prompts me within 30 secs ~ 1 minute after sending..
Click to expand...
Click to collapse
same for me. unreliable "push" in mango rtm
had to set it to 15min fetch as it was more reliable. although sometimes i open email and it says "last synced 19min ago" wtf?. buggy i guess