Solved configure 3CX trunk for sipgate.de

[e23cx]

Hi Team,
I configured a sip trunk fro sipgate.de. I can make incoming and outgoing calls.
I can reach my extensions from PSTN by assigned DID, but I if I make call out, CID is always shown as a main trunk number.
For DIDs I used format : 00492110001
For CIDs none of the tried formats doesn't work: not 00492110001, not 492110001, not 2110001, not 02110001
I thought it could be related to SIP TRUNK outbound parameters (P-Preferred Identity : User Part) but I'm not sure which one.
Anybody who seen this issue before? may be on different SIP trunk providers?

 

[e23cx]

I've just found a workaround for this and want to share this with you!
I changed "P-Preferred Identity : User Part" value from "OutboundCallerID" to "OutboundLineID"
and this did the trick

 

[StefanW]

correct in sipgate is "492110001" to be used as outbound caller ID.