[cisco-voip] VG224 T.38

[voip at mrga.ch]

mgcp
mgcp call-agent cmt1 service-type mgcp version 0.1
mgcp fax t38 inhibit

That's all we have configured with mgcp

Reto

Zitat von "Fedorov, Konstantin" <kfedor at amt.ru>:

> Hi Reto,
> 
> Send a snip of you config.
> Try to turn off T38 and check.
> 
> -----------------------
> Sincerely Yours,
> Konstantin Fedorov
> 
> -----Original Message-----
> From: cisco-voip-bounces at puck.nether.net
> [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of voip at mrga.ch
> Sent: Monday, April 23, 2007 5:20 PM
> To: cisco-voip at puck.nether.net
> Subject: [cisco-voip] VG224 T.38
> 
> Hello all
> 
> we still have a problem with a VG224 Gateway. We connected it to our
> Callmanager
> 4.2(3) and configured some ports (MGCP). When we want to make a call
> from a
> phone attached to the VG224 the destination phone rings and I can pick
> up the
> call. However I don't get a voice connection. The call terminates and I
> get the
> busy signal. After that I have to reboot the Port on the VG224.
> 
> Has anyone an idea??
> 
> Thanks Reto
> 
> It seems that the problem is related to T.38 (see packet capture below):
> 
> No.     Time        Source                Destination           Protocol
> Info
>      34 7.574297                                                MGCP
> MDCX
> 205 AALN/S2/1 at gw MGCP 0.1
> 
> Frame 34 (208 bytes on wire, 208 bytes captured)
> Ethernet II, 
> Internet Protocol, 
> User Datagram Protocol, Src Port: 2427 (2427), Dst Port: 2427 (2427)
> Media Gateway Control Protocol
>     MDCX (ModifyConnection)
>     Transaction ID: 205
>     Endpoint: AALN/S2/1 at gw-test-fx1.hel.kko.ch
>     Version: MGCP 0.1
>     [The response to this request is in frame 36]
>     Parameters
>         CallId (C): A0000000010000b0000000F5
>         ConnectionIdentifier (I): A
>         RequestIdentifier (X): 9
>         LocalConnectionOptions (L): L: p:20, a:PCMU, s:off, t:b8,
> fxr/fx:t38
>             Packetization period (p): 20
>             Codecs (a): PCMU
>             Silence Suppression (s): off
>             Type of Service (r): b8
>             Unknown parameter:  fxr/fx:t38
>         ConnectionMode (M): recvonly
>         RequestedEvents (R): L/hu
>         QuarantineHandling (Q): process,loop
> 
> 		
> No.     Time        Source                Destination           Protocol
> Info
>      36 7.577209                                                MGCP
> 510 205
> fx: setting cannot be supported
> 
> Frame 36 (82 bytes on wire, 82 bytes captured)
> Ethernet II,
> Internet Protocol, 
> User Datagram Protocol, Src Port: 2427 (2427), Dst Port: 2427 (2427)
> Media Gateway Control Protocol
>     Response Code: The transaction could not be executed, because a
> protocol
> error was detected. (510)
>     Transaction ID: 205
>     Response String: fx: setting cannot be supported
>     [This is a response to a request in frame 34]
>     [Time from request: 0.002912000 seconds]		
> 
> 
> 
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> 
>