Is there a way I can place a call to a PBX that has a common IP address but also manages multiple domains? For example, our PBX is on and within our PBX we host multiple tenancies. For Example: and

If I dial 204@ the packets arrive but the PBX rejects them. If I dial, they are sent elsewhere due to the DNS resolution. I don’t want to have to set my HOSTS file to force this to work. Is there another way?


Yes. Please try sending the INVITE to the destination number, but, also set the Override Destination by casting your channel to a SipChannel:

if (channelResource is SipChannel sc)
    sc.OverrideDestination = “”;


This will leave the formatted SIP INVITE intact, but send the packet to the address specified.

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