I have an IOS voip router and an Asterisk PBX. Some FXS ports are registered as extensions on the PBX. I would like to also provide IP-IP gateway to a SIP provider on this router, but do not want the router to attempt to register the FXS ports with the provider for obvious reasons (and using different username/passwords). Can I accomplish this with a single router? Or do I need to have multiple routers for FXS and IP-IP gateway on each separately?
Any help appreciated. Thanks.