DFM Iran

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General office

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

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E1/T1

E1/T1 A European format for digital transmission. E1 supports signals at 2 Mbps (32 channels at 64Kbps, with 2 channels reserved for signaling and controlling), versus the T1, which carries signals at 1.544 Mbps (24 channels at 64Kbps).

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United States Core Communications, Inc.

CoreTel promises to leverage its interconnection knowledge and expertise to provide a reliable wholesale VoIP network which will allow our customers to develop and manage a wider choice of dynamic phone services for the consumer.

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