I do not know if you can help me but I try anyway.
We have an IPBX with an Asterisk base: Starface
We are trying to interconnect a cross-channel software for call centers: Kiamo
We arrive unable to make outgoing calls from Kiamo, we have a Q.850 cause error code 18.
We have several SIP trunks, one for Kiamo and one for Starface.
Kiamo’s outgoing call goes through his Trunk to chat with Starface but can not seem to come out with the Starface Trunk.
I hope I have made this sufficiently clear.