Hello,
Following this thread https://www.3cx.com/community/threads/problems-with-dtmf-door-phones-use-rfc2833-provider-uses-inband.80787/ we have upgraded our 3cx (Enterprise Annual license) to v18 (Build 1880).
Our SIP provider is Vodafone (Greece) and they only accept DTMF as inband.
I have...
Hello,
Ever since we migrated to 3cx we are having issues with DTMF.
Our door phone is using RFC2833 in order to accept incoming DTMFs, so that local extensions can open the door by pressing a DTMF sequence.
However, our provider is using inband.
We have thus configured our local extensions to...
Hello,
A costumer of ours uses the Gigaset N870. now we have the problem that the DTMF tones never reaches the 3CX system.
for example we make a cal to number X and we need to press 1 for sales and 2 for support the signal is never received by our 3CX system.
We tried:
-...