A system, method, and node for routing a SIP message within an IP Multimedia Subsystem (IMS) from an IMS/SIP client attached to a visited network to a destination address that contains a TEL URI including a local telephone number. The IMS/SIP client places a phone-context within the TEL URI, which specifies whether the local telephone number belongs to the visited network or to the client's home network. The message is delivered to the client's home network, which routes the message according to the phone-context contained within the TEL URI.