QUESTION Secondary dialing cannot working.

[silimms]

Hi,
I have setting my sip account's DTMF Signaling is SIP INFO
And use grandstream gxp1610.
When I am calling some telephone number, I cannot dialing.
It's like DTMF problem, because I don't have this problem when I use BRIA.
I have try to set DTMF setting on GXP1610, the setting is this

Any help would be greatly appreciated.

 

[krzykat]

Check your CLI and full logs and see what its doing. I typically only use the RFC2833