Adding user=phone parameter in the Dialplan

Hello all,

I’m trying to add the user=phone parameter in the SIP URI without success. Does anyone know how to do it?

I tried the following line in the extension.conf

exten => _!193755.,1,Dial(SIP/${EXTEN}@mydomain.com;user=phone)

Furthermore, I’ve tried the parameter usereqphone=yes in the sip.conf but didn’t work. Any clue?

Regards

Rafael