Solved Asterisk bridge on VPN

[Veritech]

I am setting up 3CX at my remote office and want it to connect to the Elastix server here.

I have setup an OpenVPN connection between the 3CX box and our office.

I created a Master Bridge in 3CX, BridgeID 10000,
I created a Trunk in Elastix:

Trunk Name: 3cx-out
PEER Details:
username=10000
type=friend&peer
sendrpid=yes
secret=*******
qualify=yes
nat=yes
host=10.8.222.170 <- OpenVPN IP Address on 3CX
fromuser=10000
fromdomain=172.17.10.192 <- Elastix IP Address

Register String:
[email protected]:******:[email protected]:5060/10000

I have been trying numerous settings, as I can call an extension at the remote office but when it connects, 3CX tries to send the RTP to my public IP not to the internal IP.

any suggestions on how to force 3CX to use the VPN, or get it to ignore the public IP.

Thanks

 

[leejor]

Use FQDN rather than an IP? The issue may be that trunks are usually attached in a way that would use the external IP. By employing VPN, you have in essence, placed the other PBX next to 3CX, on the local LAN. I'm not certain if there is a custom parameter, that can be changed to accommodate this.

 

[Veritech]

got it........

Elastix server, added localnet=10.8.222.0/24 to sip_nat.conf
and reloaded sip