Patent ID: 9712341
Date: 2017-07-18
CPC Classifications: H04L

Claim:
1. A system for providing E.164 number mapping (ENUM) translation, the system comprising: an ENUM database for maintaining associations between session initiation protocol (SIP) identifiers and call party identifiers; a state information database for maintaining associations between call instance codes (CICs) and SIP call identifiers (CIDs) associated with related communications; and a signaling router for receiving a first bearer independent call control (BICC) signaling message that includes a first call party identifier and a CIC, for obtaining, from the ENUM database, a first SIP identifier associated with the first call party identifier, for querying, using the CIC, a state information database for identifying a SIP call identifier (CID) associated with the CIC, wherein the state information database maintains associations between CICs and CIDs associated with related communications; for generating a first SIP signaling message that includes the first SIP identifier and the SIP CID, wherein the CIC identifies a BICC signaling session associated with the first BICC signaling message and wherein the SIP CID identifies a SIP session associated with the BICC signaling session, wherein the signaling router is configured for receiving a second SIP message associated with the first SIP message, wherein the second SIP message includes a second SIP identifier, for determining a second call party identifier associated with the second SIP identifier, for generating a second BICC signaling message that includes the second call party identifier, and for routing the second BICC signaling message towards a BICC node.