SIP Trunk
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PTCL SIP enables multi-location businesses to streamline the management and reduce the costs of managing enterprise-wide communications.  With PTCL SIP trunking service, you can leverage a centralized IP-PBX in one or more primary locations and deliver VoIP services to other branch locations using an existing private network or the XO MPLS IP-VPN service.


  • Centralizes and standardizes the management of VoIP
  • Eliminates the need for multiple phone systems and local voice trunks at each of your locations
  • Removes long distance charges among networked sites

Dynamically shares voice calling capacity across your entire enterprise.

Business Communication