G van Hamburg
IS-IT--Management
Hi there,
We have installed a few CCM's 4.2 with a SIP trunk to a T6000 (now M6) softswitch and they work OK.
Now we have a CCM 5.1 with SIP trunk to the same T6000 (now M6) and the trunk works but we have no DTMF. From the M6 to the CCM DTMF works but phones from the CCM cannot send DTMF.
When I trace the SIP trunk I see nothing at all.
So the CCM doesn't even try to send DTMF.
I selected DTMF OutOfBand in the CCM siptrunk so that should be fine.
What else is involved here? Any ideas?
THX
Plan your work............Work your plan
![[afro]](/data/assets/smilies/afro.gif "[afro] [afro]")
We have installed a few CCM's 4.2 with a SIP trunk to a T6000 (now M6) softswitch and they work OK.
Now we have a CCM 5.1 with SIP trunk to the same T6000 (now M6) and the trunk works but we have no DTMF. From the M6 to the CCM DTMF works but phones from the CCM cannot send DTMF.
When I trace the SIP trunk I see nothing at all.
So the CCM doesn't even try to send DTMF.
I selected DTMF OutOfBand in the CCM siptrunk so that should be fine.
What else is involved here? Any ideas?
THX
Plan your work............Work your plan