Hello All,
This issue has been resolved. Turned out that the RTP packets were
actually encrypted hence the RTP decode error.
Thank you for all your help,
Regards,
Vikram.
> On Tue, Feb 16, 2010 at 1:08 AM, <vragukumar at signalogic.com> wrote:
>> Hello All,
>>
>> I am running an IP telephony application on a cellphone. The application
>> uses the pjsip stack. I find that when i place a call using this
>> cellphone
>> application, the call goes through but voice is one sided. The cellphone
>> running the app cannot hear anything.
>>
>> When i look at the log on the cellphone, i see the following error
>> "RTP decode error: Unknown pjmedia error 220122"
>>
>> I looked at the source code and found that in file rtp.c, there is a
>> check
>> for version number in the RTP header.
>> ? ?/* Check RTP header sanity. */
>> ? ?if ((*hdr)->v != RTP_VERSION) {
>> ? ? ? ?return PJMEDIA_RTP_EINVER;
>> ? ?}
>> and RTP_VERSION is defined as 2.
>> Using wireshark, i have captured RTP packets destined to the cellphone
>> and
>> upon examining the RTP header i see that the version number is indeed 2.
>> What else could be causing this error ? Is there any other check which
>> would produce this error output upon failure ?
>>
>
> If you're sure that the RTP packet is correct, then it could be that
> we can't decode the RTP packet. Are you using supported build
> configuration? What is your build configuration anyway (target
> platform, the compiler, etc.). Have you tried to reproduce this with
> pjsua?
>
> Cheers
> Benny
>
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--
Thanks and Regards,
Vikram Ragukumar.
--
Thanks and Regards,
Vikram Ragukumar.
