Configure RTT - Asterisk 18

Asterisk Asterisk SIP
1

Hi,

I’m trying to enable rtt in asterisk 18.1
Tried already with
textsupport=yes and rtt-support=yes
but get error “No translator path exists for channel type SIP”
Seems it’s not setting as a message channel.

Can someone advise on configuring properly the rtt ?

Thank you!

2

Asterisk 18 is now Security Fix Only (SFO) and soon to be End Of Life (EOL).

chan_sip is deprecated as of Asterisk 17 and removed starting in Asterisk 21.

Are you able to update to Asterisk 22 and help test the latest patches for RTT T.140 support in PJSIP ?