In Tech Systems Company Hong Kong

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General office

In Tech Systems Company
Flt H, 10/F Haribest ind. bldg, Fo Tan, Hong Kong
Hong Kong

Hong Kong

Phone: +852 269 00 978

Network Service Provider

Web Call
Gatekeepering
Outsourced Billing
PC to Phone
vFone
IP devices
Web To Phone
Collaboration
Data Conferencing
Voice and Video Conferencing
Termination
Billing Software
Call Relay VoIP Solutions
H.323 VoIP Gateway
Matrix
E1 Bulk Wholeseller
Call Routing VoIP Solutions
Partnering for Origination and Termination
Project Mangement Services
System Integration
Consultancy Services
Installation and Support Services
H.323 Wireless/ GSM VoIP Solutions
H.323 Softswitch & CPE
SIP Softswitch & CPE
SIP VoIP Gateway

Cisco Systems

Java Based own system

APT Telecom Services Limited

Mountain Digital Information Ltd

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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