VIGIL INC LTD Hong Kong

Your rate:

Rating: 0/0.00/5

General office

VIGIL INC LTD
Unit 703, 7/F., Alliance Comemrcial Building,
133 Connaught Road C.,
Central ,12345
Hong Kong

Phone: 85236931404
Site: http://www.vigiltel.com

Hosted VoIP billing service provider
International VoIP Wholesale Provider
Internet Telephony Service Provider
Voip consulting
Voip Termination ISP

Call Routing VoIP Solutions
Collaboration
Consultancy Services
Installation and Support Services
Outsourced Billing
Partnering for Origination and Termination
PC to Phone
Phone To PC
Phone To Phone
Project Mangement Services
SIP Softswitch & CPE
SIP VoIP Gateway
Termination

Cisco Systems
Clarent
Lucent
Mera
Quintum
Sonus Network
Welltech

Java Based own system

CHICOM TELECOM

Sky Sonic Corporation 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.

View more WIKI