Callmate Telips Telecom Ltd.'s long distance network provides carrier connectivity for International and National Voice Services using Next Generation Network (NGN) by Huawei Technologies. The platform offers the benefits of H323, SIP, MGCP technologies as well as PSTN signalling such as CCS/SS7.

We currently have national point of presences (PoPs) in fourteen cities across Pakistan and an international point of presence in London, UK. The international PoP is used for aggregating incoming VoIP traffic as well as for termination of our own international outbound VoIP traffic. An International Private-Leased Circuit (IPLC), through SE-Me-We-3, provides connectivity between the London and Karachi PoP.

The National PoPs are interconnected through fibre, thus ensuring high quality of service. Since carrier grade trunk media gateways and CCS /SS7 signalling gateways are installed at all the fourteen PoPs, the telephone calls can be transported and terminated any where in Pakistan on the PSTN network.

The Network is monitored and managed from our 24X7 network operation centre located at Karachi.

CT Telecom has TDM based interconnect arrangements with the incumbent carrier as well as with leading mobile operators for termination /origination of international and national PSTN voice traffic.

The Huawei Intelligent network system (Tellin) is also a component of CT Telecom's long distance network and enables us to offer Intelligent Network services to our subscribers conveniently and effectively.