[Freeswitch-users] ACK disappeared from SIP session, Help

"Гришин В.С." Vladislav.Grishin at vts24.ru
Fri Nov 1 15:13:10 MSK 2013


Problem is solved after externip=<external NAT IP>  addition on aserisk.



31.10.2013 0:02, "Гришин В.С." пишет:
> Call in direction from IP Phone to PBX works fine.
>
>
>
> 30.10.2013 22:57, "Гришин В.С." пишет:
>>
>>
>> the correct scheme is PBX---E1--Cisco 2811-----VoIP 
>> SIP-----FreeSWITCH-----VoIP SIP----NAT----asterisk(1.8.20)---IP Phone
>>
>> Asterisk IP is 162.48.13.26 (External IP NAT )
>>
>>
>> 30.10.2013 22:36, "Гришин В.С." пишет:
>>>
>>> the scheme is PBX---E1--Cisco 2811-----VoIP 
>>> SIP-----FreeSWITCH-----VoIP SIP---asterisk(1.8.20)---IP Phone
>>>
>>> FreeSWITCH IP is 191.21.19.12
>>> Asterisk IP is 162.48.13.26
>>> Call comes to FreeSWITCH from a Cisco 2811.
>>>
>>> SIP session between freeswitch and asterisk(1.8.20)
>>>
>>>
>>> |Time     | 191.21.19.12 |
>>> |         |                   | 162.48.13.26 |
>>> |21.048754|         INVITE SDP (g711A CN)         |SIP From: "91295" 
>>> <sip:9195 at 191.21.19.12 To:<sip:9647 at 162.48.13.26
>>> |         |(5065)   ------------------>  (5060)   |
>>> |21.048758|         INVITE SDP (g711A CN)         |SIP From: "91295" 
>>> <sip:9195 at 191.21.19.12 To:<sip:9647 at 162.48.13.26
>>> |         |(5065)   ------------------>  (5060)   |
>>> |21.065794|         100 Trying|                   |SIP Status
>>> |         |(5065)   <------------------  (5060)   |
>>> |21.122406|         180 Ringing                   |SIP Status
>>> |         |(5065)   <------------------  (5060)   |
>>> |21.143580|         RTP (g711A)                   |RTP Num 
>>> packets:50  Duration:0.922s SSRC:0xB5320A6
>>> |         |(21866)  <------------------  (12772)  |
>>> |22.282684|         180 Ringing                   |SIP Status
>>> |         |(5065)   <------------------  (5060)   |
>>> |22.296762|         181 Call is being forwarded   |SIP Status
>>> |         |(5065)   <------------------  (5060)   |
>>> |27.558268|         180 Ringing                   |SIP Status
>>> |         |(5065)   <------------------  (5060)   |
>>> |35.039883|         200 OK SDP (g711A)            |SIP Status
>>> |         |(5065)   <------------------  (5060)   |
>>> |35.307222|         RTP (g711A)                   |RTP Num 
>>> packets:1490  Duration:29.773s SSRC:0x530CAB37
>>> |         |(21866)  <------------------  (12772)  |
>>> |35.476614|         200 OK SDP (g711A)            |SIP Status
>>> |         |(5065)   <------------------  (5060)   |
>>> |35.532995|         RTP (g711A)                   |RTP Num 
>>> packets:2966  Duration:29.680s SSRC:0x308FC816
>>> |         |(21866)  ------------------>  (12772)  |
>>> |36.436846|         200 OK SDP (g711A)            |SIP Status
>>> |         |(5065)   <------------------  (5060)   |
>>> |38.282686|         200 OK SDP (g711A)            |SIP Status
>>> |         |(5065)   <------------------  (5060)   |
>>> |42.025399|         200 OK SDP (g711A)            |SIP Status
>>> |         |(5065)   <------------------  (5060)   |
>>> |45.637280|         200 OK SDP (g711A)            |SIP Status
>>> |         |(5065)   <------------------  (5060)   |
>>> |49.343115|         200 OK SDP (g711A)            |SIP Status
>>> |         |(5065)   <------------------  (5060)   |
>>> |53.119940|         200 OK SDP (g711A)            |SIP Status
>>> |         |(5065)   <------------------  (5060)   |
>>> |56.907800|         200 OK SDP (g711A)            |SIP Status
>>> |         |(5065)   <------------------  (5060)   |
>>> |60.791453|         200 OK SDP (g711A)            |SIP Status
>>> |         |(5065)   <------------------  (5060)   |
>>> |64.606730|         200 OK SDP (g711A)            |SIP Status
>>> |         |(5065)   <------------------  (5060)   |
>>> |65.219392|         BYE       |                   |SIP Request
>>> |         |(5065)   <------------------  (5060)   |
>>> |65.234354|         200 OK    |                   |SIP Status
>>> |         |(5065)   ------------------>  (5060)   |
>>> |65.234359|         200 OK    |                   |SIP Status
>>> |         |(5065)   ------------------>  (5060)   |
>>>
>>> It is visible that there is no package with ACK confirmation from a 
>>> FreeSWITCH to Asterisk.  Asterisk sends several times SIP OK on a 
>>> freeswitch, and without having waited confirmations (ACK) after 23 
>>> seconds sends SIP BY on a freeswitch and on IP Phone. After that 
>>> call stops. Before disconnection subscribers hear each other of 29 
>>> (+-) seconds
>>>
>>> In tcpdump between Cisco and FreeSWITCH it is visible that the SIP 
>>> ACK packet from Cisco arrives on a freeswitch.
>>>
>>> In what place the SIP ACK in a FreeSWITCH disappeared?
>>> What to me to analyse in SIP session?
>>> Maybe someone solved a similar problem?
>>> please, Help!
>>>
>>> Vladislav Grishin
>>>
>>>
>>> _________________________________________________________________________
>>> Professional FreeSWITCH Consulting Services:
>>> consulting at freeswitch.org
>>> http://www.freeswitchsolutions.com
>>>
>>> 
>>> 
>>>
>>> Official FreeSWITCH Sites
>>> http://www.freeswitch.org
>>> http://wiki.freeswitch.org
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>>>
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>>> FreeSWITCH-users at lists.freeswitch.org
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>>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>>> http://www.freeswitch.org
>>
>> Vladislav Grishin
>>
>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
>> consulting at freeswitch.org
>> http://www.freeswitchsolutions.com
>>
>> 
>> 
>>
>> Official FreeSWITCH Sites
>> http://www.freeswitch.org
>> http://wiki.freeswitch.org
>> http://www.cluecon.com
>>
>> FreeSWITCH-users mailing list
>> FreeSWITCH-users at lists.freeswitch.org
>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>> http://www.freeswitch.org
> Vladislav Grishin
>
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> 
> 
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://wiki.freeswitch.org
> http://www.cluecon.com
>
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org
Vladislav Grishin

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