SIP SRST no inbound calls

[rkrumpe]

Hi,

i use a Gateway with ISDN and MGCP Fallback. In SRST mode all SCCP Phone are registered and in/-outbound calls working fine. The 9951 SIP Phones are also registering, but the incoming calls are disconnected with:

SIP/2.0 406 Not Acceptable

Did somebody have experience with this Message?

i attached the config and debugs

thx

Ronny

[Marwan ALshawi]

so the call ring the phone once yo answer it it get disconnected ? if yes can you try to enforce the call tcodec o be g711

[rkrumpe]

No, teh Call will disconnected at the gateway. it isn't reach the Phone.

regards

Ronny

[Marwan ALshawi]

you might need some additional conifg for the SIP in SRST

have a look at the bellow discussion which might have the answer to your issue

https://supportforums.cisco.com/message/3390143#3390143

HTH

if helpful Rate