Displaying 1 result from an estimated 1 matches for "progresstrunk".
2011 Sep 02
0
QSIG-SIP overlap dialing and Asterisk (RFC4497)
...to the PRI as
they are typed, whenever the PRI gets the signal that the number is
complete the dialer instantly gets a ringing. This behavior is described
in RFC 4497. Section A.2.3. SIG to SIP, using overlap procedures on both
QSIG and SIP.
Ideally this should be possible with a simple context:
[progresstrunk]
exten => anonymous,1,Dial(dahdi/g1)
The SIP and DAHDI conversation goes as follows, user picks up a phone
and tries to dial a number.
SIP > SIP/SDP Request: INVITE sip:anonymous at asterisk:5060, with session description
DAHDI > Message Type: SETUP (5)
DAHDI > [04 03 80 90 a3]
DAHD...