Hello,
I continued my investigation. I made my tests with OpenSIPS 1.6.3-notls
and pjsip svn branch 1.x
The issue appears when pjsip (iPhone) calls only. And not when the pjsip
(iPhone) receives a call.
In fact in our case we place a call with many codecs, so the message
size is bigger than 1300 bytes. And the RFC 3261 tells that we have to
switch to TCP (extract from 'sip_config.h'/'sip_util.c')
* RFC 3261 section 18.1.1:
* If a request is within 200 bytes of the path MTU, or if it is larger
* than 1300 bytes and the path MTU is unknown, the request MUST be
sent
* using an RFC 2914 [43] congestion controlled transport protocol,
such
* as TCP.
In the next messages, the server and device continue to use TCP. And in
this case the server doesn't send BYE message.
I don't know:
- whether the server has to continue using TCP, and not UDP,
- why the server doesn't send BYE message with TCP connection
For the moment we have several solutions
- reduce the number of codec
- use compact form (global variables
pjsip_use_compact_form/pjsip_include_allow_hdr_in_dlg/pjmedia_add_rtpmap_for_static_pt)
- increase the UDP size threshold (define PJSIP_UDP_SIZE_THRESHOLD)
- force to use UDP (define PJSIP_DONT_SWITCH_TO_TCP)
If someone has an other idea or an opinion/advice, I'm interested.
Regards
Samuel
Le 02/06/11 23:57, Samuel Vinson a ?crit :
> Hello,
>
> I confirm your issue, and it's present in ipjsua too.
>
> But it's very weird, because:
> - if the iphone calls someone, and someone ends the call, the
> PJSIP_INV_STATE_DISCONNECTED message is not triggered by the iPhone
> - if someone calls the iphone, and someone ends the call, the BYE
> message is triggered by the iPhone.
>
> I use the last version of svn branch 1.x.
>
> Regards
>
> Samuel
>
> Le 01/06/11 09:14, Dia Kharrat a ?crit :
>> Hi,
>>
>> We're implementing a voip-based iphone app, and I'm facing a
>> situation where I'm not receiving the call state
>> PJSIP_INV_STATE_DISCONNECTED event when the callee disconnects the
>> call (on a PSTN). When I tried testing out the ipjsip sample iphone
>> app provided in the SDK, I noticed that it receives the disconnect
>> event properly. So, it seems like I'm missing something in my code.
>> Comparing how the sample app does things did not yield anything that
>> stands out from how we're using pjsip. Does anyone happen to know why
>> PJSIP_INV_STATE_DISCONNECTED would not be triggered? I receive the
>> other events properly, so it's very strange. Any pointers as to where
>> to look would be appreciated.
>>
>> Thanks,
>> Dia
>>
>>
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>>
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>
>
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>
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