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Dinstar DAG2500-72S Analog VoIP gateway

Sales price: $799.99


DAG2500 is a functional analog VoIP gateway offering seamless connectivity between VoIP and traditional phone system. It's a highly-integrated gateway which provides up to 72 FXS ports with standard R21 interface in 1U size. Users can easily connect their analog phones, fax machines and PBX systems via standard voice interface. DAG2500 supports the standard SIP protocol and it's compatible with leading IMS/NGN platform and SIP-based IP Phone system. It is ideally suited for small and medium businesses, call centers and multi-location environments that need VoIP services.

Physical Interfaces

  • Phone Connector:
  • DAG2500-72S: 72 FXS with  3* RJ21, 50 PIN
  • DAG2500-64S: 64 FXS with  3* RJ21, 50 PIN
  • DAG2500-48S: 48 FXS with  2* RJ21, 50 PIN
  • Console:1* RS232, 115200bps
  • SFP:N/A, Reserve
  • Network Interface: 2* 10/100/1000 Base-T

Voice & FAX

  • G.711A/U law, G.723.1, G.729A/B,G.726,iLBC,AMR
  • Silence Suppression
  • Comfort Noise Generation(CNG)
  • Voice Activity Detection(VAD)
  • Echo Cancellation(G.168), with up to 128ms
  • Adaptive (Dynamic) Jitter Buffer
  • Programmable Gain Control
  • T.38/Pass-through
  • Modem/POS
  • DTMF mode: SIP Info/RFC2833/In-band
  • VLAN 802.1P/802.1Q 
  • Layer3 QoS and DiffServ


FXS Features

  • Connector: RJ21
  • Dial Mode: DTMF and Pulse
  • Pulse: 10 and 20 PPS
  • Caller ID: DTMF/FSK CLI Presentation
  • Max Cable Length: 5KM
  • Reversed Polarity
  • Programmable Call Progress Tone

More Information