[Serusers] ZyXEL ACK Problem.

[Jan Janak]

Please send us all SIP messages (not just the ack) and also debugging
output of ser.
 
 Jan.

On 29-04 16:45, markus monka wrote:
> It is a ZyXEL Phone connected to a ZyXEL Wlan Router.
> 
> 
> Sending INVITE 
> 
> 
> INVITE => SER => ASTERISK 
> 
> ASTERISK send "Session Progress" everything is fine:
> ASTERISK sends "OK" 
> 
> Session starts. I can hear my Voice. After 6 Seconds 
> Session breaks up.
> 
> Something seems to be strange with the ACK the ZyXEL
> Phones sends:
> 
> PHONE => PROXY
> ACK sip:0xxxxx at 21.1.7.9 SIP/2.0
> Via:SIP/2.0/UDP 21.28.17.18:5060;branch=z9hGddbkb8a7ca191bf4fd
> From:Zyxel<sip:1111111 at domain.de;user=phone>;tag=C2E2D6CF845EA11AEBC2
> To:<sip:0xxxxxxxxx at domain.de;user=phone>;tag=as4f89971f
> Call-ID:15482-E655-54C3-B488-1D32D8DF7653 at 21.28.17.18
> CSeq:1 ACK
> User-Agent: ZyXEL P2000W VoIP Wi-Fi Phone
> Route:<sip:49xxxxx at 21.1.7.8;ftag=C2E2D6CF845EA11AEBC2;lr=on>,<sip:492405690929 at 21.28.17.18:5060>
> 
> 
> When loggin with debug = 10 , i do not see some errors in syslog.
> 
> The Gateway then sends 6 more "OK" and the terminate by sending "BYE".
> The Phone answers with "200 OK" .. ?
> 
> 
> Regards,
> Markus
> 
> 
> 
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