Telesphere's private, nationwide MPLS network provides direct private SIP interconnection to IP PBXes from vendors such as Asterisk, Avaya and Cisco, as well as TDM PBXes. By using Telesphere for ...

XO Communications has unveiled an enterprise-class, multi-site Session Initiation Protocol trunking solution designed to add flexibility and scalability to distributed voice network architecture for a ...

While many enterprises have transitioned to SIP trunking as they adopt Voice over IP (VoIP), many are hesitant to migrate their contact centers away from the Public Switched Telephone Network (PSTN) ...