DFM Iran
General office
DFM
shahrakeh jandarmery, etaaty Aev,
Tehran
Tehran ,13145
Iran
Phone: +98 21 8825 180
Phone: +98 935 541 1437
DFM
shahrakeh jandarmery, etaaty Aev,
Tehran
Tehran ,13145
Iran
Phone: +98 21 8825 180
Phone: +98 935 541 1437
- SIP Billing
- Voip consulting
- Phone To Phone
- SIP Softswitch & CPE
- Audiocodes
- Cisco Systems
- Dialogic Based
- INPERTEL
- Java Based own system
- K2 Power Bill
- MIND
- NACT - UNIX Platform
- Our Own ASP Solution
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.
Voipfone
Voipfone is an Internet Telephone Service provided by Inet Telecoms Ltd. It was founded to develop telephony services utilising Voice over Internet Protocols (VoIP) and is now a leading provider in the UK offering a wide range of telecommunication product
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