GUANGZHOU YICAI SPECIAL PRINTING CO.,LTD China

We are a manufacturer of PVC and paper printing,including Prepaid phone card,Calling card,Scratch card,
Magnetic card,Access card,Membership card,Business card,Key card,Abnormity card,3D ventricular card, Key tag,
Door-hangers,Gift card,Die-Cut stickers,Flyer,Poster,Booklet,oucher,Letterhead,Company letters, etc.

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General office

GUANGZHOU YICAI SPECIAL PRINTING CO.,LTD
TaiHe Towm
GuangZhou
GuangDong Province
China

Phone: +86-020-38275044
Site: http://www.gzyicai.cn/

Contact Person

Lichee Lu / Sr.Sales Director
Phone: +86-020-38275044

Hosted VoIP billing service provider

Not data

Gnex Technology Co., Ltd

SHENZHEN HYBERTONE TECHNOLOGY CO.,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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Teliqo

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