Methods, devices, and storage media provide for receiving a request to use a multiparty service; applying priority rules for routing the request toward a destination endpoint, wherein the applying comprises determining whether the destination endpoint is a private destination endpoint or a public destination endpoint; routing the request toward the private destination endpoint in response to determining that a destination address or a portion thereof included in the request corresponds to the private destination endpoint; and routing the request toward the public destination endpoint in response to determining that the destination address or the portion thereof included in the request corresponds to the public destination endpoint.