Avaya IP Office enabling external transfer on R10
Avaya IP Office enabling V10 and above to forward calls
STEP ONE
System > LAN1/2 (Whichever the SIP trunk is going out on) > VoIP > Keepalives
Scope = RTP-RTCP
Periodic timeout = 30
Initial keepalives = Enabled
STEP TWO
Sip line > SIP Advanced
Use Domain for PAI = TICKED
Tested on Akiva system, DIDN’T need a reboot to work