Time Division Multiplexing (TDM) has significant limitations with the explosion of communications platforms supporting mobile workers and new business tools.

Session initiation protocol (SIP trunks) are virtual circuits based on bandwidth and global call paths that provide a secure IP voice solution, and you can keep your existing local and DID numbers. By developing a converged voice and data strategy, organizations can leverage cost and merged IP platform benefits.

Take advantage of a migration strategy that allows for a gradual migration with TDM PRI handoffs, allowing you to continue to use existing purchased PBX equipment, while benefiting from the performance, reliability, and savings of an IP network with SIP.