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Re: [Linphone-developers] Implement iOS Background Mode for incoming cal

From: Xaree
Subject: Re: [Linphone-developers] Implement iOS Background Mode for incoming call
Date: Wed, 01 Oct 2014 17:56:32 +0800
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:31.0) Gecko/20100101 Thunderbird/31.1.2

According to the official documents for iOS development ( "liblinphone automatically configures SIP socket for voip".

I don't know how to check whether the linphone uses TCP socket. Any idea?


Luis Soltero 於 10/1/14 16:17 寫道:
Note that receive calls in background mode on iOS you must use TCP and not UDP.


On 10/1/14, 4:05 AM, Xaree wrote:
Dear all,

I use Linphone C API to write an iOS VoIP app. After I did add some code for 
background mode, it still can't receive
incoming call in background. I'm not sure what the problem is. Hope someone can 
provide hints for me.

I did the following jobs from the official docs 
( for the
background mode in iOS:

1. add `voip` and `audio` value in the .plist for background mode.
2. refresh register and call `-setKeepAliveTimeout:handler:` in 
UIApplicationDelegate method

Did I miss something?

Is there any minimal example to implement the background incoming call (not the 
big linphone-iphone project)?

I don't understand how the official linphone-iphone project implements the 
background incoming call. After removing
the `-setKeepAliveTimeout:handler:` implementation, the official 
linphone-iphone app still can receive the background
incoming call.

Best regards,

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