VOIP Service Providers Residential
bg-call.com
BG-Tel.com
NGTelecomGroup Inc
ELEXIM
We produce Windows XP based CallShop Billing for up to 8 Phones with LCD Displays which show the cost and the time.
Bulgaria / Sofia / Tsarigradsko Shosse Blvd., 7th km, BIC IZOT
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VMobile
VMobile is a new telecommunication company focused on mobile VoIP solutions
Bulgaria / Sofia 1510 / Rezbarska 5
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Longa
We provide complete termination to Mobile, Bulgaria +3598 area codes with lowest rates. The routes are long-running, distributed with high 90% ASR based.
Bulgaria / Varna
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Media Commerce Ltd.
MEGATEL GROUP Ltd
offers a QUALITY and low-cost phone service including,Free calls,to landline and mobiles,Pc-PC,PC-Phone,Phone-Phone calls,SMSs worldwide,Email to SMS,Fax to Email,Email to fax,webfax,voicemail,Caller ID,follow-me,Video Conference calls with Ch
Bulgaria / Veliko Turnovo
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DC Telecom Ltd
A Real-time Transport Protocol (RTP) is a protocol standard defined by the Internet Engineering Task Force (IETF) that outlines a management system for programs using real-time transmission of data through mutlicast or unicast network services in multimedia situations. Originally designed by the IETF for videoconferencing for multiple participants, the protocol is largely used in Voice over Internet Protocol applications. Despite its name, the protocol cannot guarantee real-time delivery of data, however, the RTP does compensate for jitters and can detect when data arrives out of sequence, both issues being popular in VoIP communication. In IP telephony, RTP works with a signaling protocol, such as SIP or H.323, in order to set up connections in a network.
