VoIPZAG Telecom Bulgaria

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VoIPZAG Telecom
str.Al.Stamboliiski-65-4-10
Yambol
BG ,8600
Bulgaria

Phone: 359886418552
Site: http://www.voipzag.com

Contact Person

zdravko Gicov / Director
Phone: 359886418552

Hardware
Hosted VoIP billing service provider
International VoIP Wholesale Provider
Internet Telephony Service Provider
Internet VoIP and Video Conferencing Service Provider
SIP Billing
VoIP Billing Software Provider
Voip consulting
Voip Termination ISP
Wireless Broadband

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

2N
Antek
Audiocodes
Blue Lava Prorietary 2 & 4 Port Analog VoIP Gateways
Cisco Systems
Clarent
CPM
D-TAC
Dialogic Based
DSG
Huawei VoIP Products
Lucent
Mera
Micronet
Mosa
NACT
net.com
Netvox
Nicstel
Nuera
QiiQ
Quintum
Senao
Sonus Network
Telica
UOL
Vegastream
vFone
VocalTec
Welltech
Yoda

Billing system of own development
Custom Open Source Billing Solution

DC Telecom Ltd

VoIPZAG Telecom

Providers in database: 6433

SDP Protocols Are Used To Transmit Media Session Information

In 1998, the Internet Engineering Task Force (IETF) published the specification for a Session Description Protocol or SDP as a format that describes parameters for streaming media. The original IETF Proposed Standard was updated in 2006 as RFC 4566. Although the SDP was created as a feature of Session Announcement Protocol (SAP), it can be used with Real-time Transport Protocol, Real-time Streaming Protocol (RTSP), and Session Initiation Protocol, as well as a standalone protocol. Parameter negotiation, session announcement and session invitation are included in the descriptive sessions from the SDP protocol. Rather than transmit data like other types of protocols, an SDP negotiates between media type endpoints, format and properties involved. A session begins when a connection is established, and the session is terminated only after every endpoint is no longer participating.

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