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|   E1 PRI ISDN GSM Gateway - 90 SIM   |

|   PRODUCTS   |


The E1 PRI ISDN (Euro ISDN) GSM Gateway with 90 SIMs (3 SIMs per each GSM channel - 90 SIMs per E1) is a compact E1 PRI ISDN GSM Gateway solution which integrates the E1 PRI ISDN (Euro ISDN) interface to the GSM network to provide the user with 30, GSM links (90 SIMs) for mobile communications with an integrated E1 PRI ISDN interface.

PRI ISDN GSM Gateway Application:

  • Providing voice and data traffic directly into the GSM network over VoIP, VoATM, VPN, DCME E1 / T1 equipment.
  • Providing corporate business fixed to mobile / mobile to fixed telephony.
  • Connecting remote (distant) locations over GSM networks.
  • Providing rural connectivity over GSM networks.
  • Providing last mile connectivity over GSM networks.
  • Providing quick basic telephony provisioning.
  • Providing GSM connectivity for river boats, costal cruise ships.
  • Providing connectivity to fixed network back-up via GSM.
  • Providing VPN connectivity between two corporate networks.
  • Providing mobile back-up solutions for corporate businesses with high security requirements, and
  • many more applications.

The E1 PRI ISDN (Euro ISDN) GSM gateway also replaces the cumbersome fixed wireless terminals and provides accurate answer supervision and line disconnect supervision, plus a host of other advantages, which include fast connection times (very short PDD) and high ASR rates that compete with the industry's best. To read more about the advantages of our integrated GSM solution over the fixed wireless terminal solution.

The interface of the network side is E1 digital interface. The interface on the user side is 30 x GSM links.

Comarra offers both E1 GSM Gateways with the following features:

  • The interface of the network side is E1 Digital Interface with PRI ISDN (Euro ISDN) signaling.
  • Signaling per PRI ISDN (Euro ISDN) Q.931 recommendations.
  • The interface on the user side is up to 30 x GSM links (90 SIMs per E1 - 3 SIM per channel).
  • Accurate answer supervision and disconnect supervision.
  • Each GSM channel individual programmable to work with any of the 3 SIMs, according to the user programmed time-of-day schedule. This enables the user to program a least-cost operation so that traffic of each GSM channel is directed to the preferred SIM (out of the 3 SIM cards per channel) - which shall be activated only according to the "user" programmed time-of-day schedule.
  • GSM Gateway to automatically "call" a "user" programmed number at a "user" programmed time-of-day, once every 24 hours to confirm to the operator that each GSM channel is in operation.
  • Pre-Paid Balance Enquiry: GSM Gateway automatically enquire each PRE-PAID GSM SIM card for balance minutes / balance credits and sending an SMS message with this information to a "user" programmed number at a "user" programmed time-of-day.
  • Unique caller ID blocking feature (if network allows)
  • Echo cancellation up to 128ms. provided - optional
  • Remote access monitoring over TCP/IP network - optional
  • Unique out-bound calling, user programmable, access feature.
  • All 30, GSM channels are dual band - 900MHz and 1800MHz with auto-sense / auto-switching capability.
  • Optional: All 30, GSM channels are dual band - 850MHz and 1900MHz with auto-sense / auto-switching capability.

Features and Highlights:

  • Compact, 30 GSM terminals (90 SIMs per E1) in a 19-inch chassis.
  • GSM is integrated to the E1 PRI ISDN (Euro ISDN) Interface.
  • Exceptional voice quality. The two wire trans-hybrid analog path (present in the Fixed Wireless Terminals) is eliminated in the innovative design, resulting in improved voice quality, clearer voice and superior channel separation by reducing the susceptibility to echoes that result from the analog two wire trans-hybrid VF paths.
  • Provides accurate billing information ("answer supervision" and "line disconnect supervision") - not provided by Fixed Wireless Terminals.
  • Integrated, optional, E1 Echo-Canceller to cancel echo tails from inherent delays of VoIP / VoFR networks - 64ms. uni-directional, 128ms. uni-directional and 64ms. bi-directional options available.
  • Lower cost - resulting from complete, GSM to E1 PRI ISDN integration.
  • Plug-And-Play. Easy to install. Takes only minutes to install and start service.

Others Links:

  STM SDH Multiplexers
  E1 VoIP-GSM Gateways
  VoIP SS7 and C7 Solution
  Echo Cancellers and VQE Solutions
  GSM Gateways / GSM Channel Banks
  E1 and T1 over Ethernet (TDM over IP)
  Digital Access Cross Connect Switch (DACS)
  E1, T1, E3, DS3, Ethernet Converter (IP over TDM)

Technical specifications are subject to change without notice.
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