[Freeswitch-users] FS to a Sonus SIP trunk

[Brian West]

Have you thought of opening a Jira?

/b

On Jul 28, 2011, at 5:14 AM, michael knop wrote:

> Update:
> 
> Call starts with good sound quality. After the following log message 
> sound is choppy:
> 
> 2011-07-28 12:07:22.639151 [DEBUG] sofia.c:5094 Duplicate SDP
> v=0
> o=Sonus_UAC 8739 8900 IN IP4 XXX.XXX.XXX.XXX
> s=SIP Media Capabilities
> c=IN IP4 YYY.YYY.YYY.YYY
> t=0 0
> m=audio 20320 RTP/AVP 8 0 18 100
> a=rtpmap:8 PCMA/8000
> a=rtpmap:0 PCMU/8000
> a=rtpmap:18 G729/8000
> a=fmtp:18 annexb=no
> a=rtpmap:100 telephone-event/8000
> a=fmtp:100 0-15
> a=maxptime:10
> 
> /micha
> 
> Am 26.07.2011 16:52, schrieb michael knop:
>> Hi all!
>> 
>> I’m trying to connect my FS to a Sonus SIP trunk. I followed the
>> instruction at
>> 
>>    http://wiki.freeswitch.org/wiki/RTP_Issues#Sonus
>> 
>> but it did not work. At the beginning of a call voice quality is good.
>> After a while it changes to choppy.
>> 
>> I don’t know if it’s the same problem: When I call the Tetris extension
>> via Sonus SIP trunk the sound is too fast and I’m getting log entries
>> like the following one:
>> 
>> [...]
>> 2011-07-26 11:52:27.682259 [WARNING] mod_sofia.c:1106 Asynchronous PTIME
>> not supported, changing our end from 20 to 10
>> 2011-07-26 11:52:27.682259 [DEBUG] sofia_glue.c:2737 Changing Codec from
>> PCMA at 20ms@8000hz to PCMA at 10ms@8000hz
>> 2011-07-26 11:52:27.722150 [WARNING] switch_time.c:516 Increasing global
>> timer resolution to 10ms to handle interval 10
>> 2011-07-26 11:52:27.722150 [DEBUG] switch_rtp.c:1521 RE-Starting timer
>> [soft] 80 bytes per 10ms
>> 2011-07-26 11:52:27.722150 [DEBUG] sofia_glue.c:2819 Set Codec
>> sofia/external/+4940... at 193...:5060 PCMA/8000 10 ms 80 samples 64000 bits
>> 2011-07-26 11:52:27.722150 [DEBUG] switch_core_io.c:1074 Engaging Write
>> Buffer at 160 bytes to accommodate 320->160
>> [...]
>> 
>> This problem is fixed by adding the following line to
>> conf/sip_profiles/external.xml:
>> 
>> <param name="rtp-autofix-timing" value="false"/>
>> 
>> Any hints?
>> 
>> /micha
> 
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