Alfa Telecom s.r.o. Czech Republic

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General office

Alfa Telecom s.r.o.
Milicova 470/6
Prague
,10300
Czech Republic

Phone: +420 222 782 852
Site: http://www.alfatelecom.cz

Contact Person

Mikhail Darkin / manager
Phone: +420 222782852

Hosted VoIP billing service provider
International VoIP Wholesale Provider
Internet Telephony Service Provider
Network Service Provider

Call Relay VoIP Solutions
Call Routing VoIP Solutions
Collaboration
E1 Bulk Wholeseller
Gatekeepering
H.323 Softswitch & CPE
H.323 VoIP Gateway
H.323 Wireless/ GSM VoIP Solutions
Installation and Support Services
Outsourced Billing
Partnering for Origination and Termination
PC to Phone
Phone To Phone
SIP Softswitch & CPE
SIP VoIP Gateway
System Integration
Termination

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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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