When adding a new provider in the advanced "Provider Details" page,
http://www.voxalot.com/action/providerAdvanced
there is space for the "From Domain", but nowhere to specify the "remote domain".
My Japanese VSP requires the request URI to contain the Japanese-domestic formatted phone number (I can take care of that with VoXaLot dial plans), as well as a VSP-specific "domain". This "domain" is private to the VSP; it cannot be looked up in public DNS (either by A records or SRV records).
eg, the VSP's SIP server is sip.voipexample.jp, but they require the request URI to be in the form:
03xxxxxxxx@privatedomain.voip.vsp
and the SIP INVITE message sent to sip.voipexample.jp
Is there anyway I can get VoXaLot to use the required "remote domain" when sending calls to this provider?
RFC 3261 mentions the ";maddr=..." parameter, which can suffix a SIP URI to indicate a server that must be traversed. Could I somehow specify that suffix in a dial plan rule?