Catalyst Communication Pakistan

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Catalyst Communication
NTC Head Quaters F/51
Islamabad
Fedral ,44000
Pakistan

Phone: 92519208953
Site: http://www.catcomntc.com

Contact Person

Hasan Rana / Asistant System enginner
Phone: 923005014550

Internet Telephony Service Provider

Call Routing VoIP Solutions

Cisco Systems
Clarent

Billing system of own development

Sir Communications Pty Ltd.

Catalyst Communication

Providers in database: 6433

VoIP Favors SIP

Session Initiation Protocol (SIP) is a text-based standard put in place by the Internet Engineering Task Force (IETF) and is the primary protocol for Voice over Internet Protocol services. SIP is similar to a MGCP in that it's a signaling protocol that can create, maintain and terminate sessions in IP-based networks. These sessions include multimedia conferencing and two-way phone calls. SIP protocol can run on User Datagram Protocol (UDP), Stream Control Transmission Protocol (SCTP) and Transmission Control Protocol (TCP) because it was created to function independently from the underlying Transport Layer as an Application Layer.

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Welcome Telecom

Welcome Telecom is an established, leading provider of Telephony Services (PSTN, SIP & H323), Multimedia Communications, long distance, wireless, point-of-sale and carrier services. We put our customers first by delivering reliable access to advanced, aff