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GSM-PRI Gateway
GSM
PRI
Existing PBX
Syntel PRI Gateway
GSM-PRI Gateway - The Concept
 A GSM-PRI Gateway is an interface to connect multiple GSM SIM Cards to an existing EPABX using a
PRI interconnect
 30 SIM Cards are connected on the network side and a PRI line output on the EPABX trunk side
 When the EPABX extensions seize the PRI to out dial, the gateway accepts the request via the PRI
line and in turn seizes one of the GSM SIM cards and out dials the number
 Similarly, when the SIM number is dialed by someone, then the gateway sends it via its PRI line and
lands it on the designated extension of the EPABX
Instead of a Gateway, why not use multiple FWTs for making outgoing calls ??
Difficulties in using separate FWTs:
 Large space required for installing multiple FWTs
 Power supply & backup for all FWTs
 No special features like Auto Attendant, Call Billing, etc
 Service issues with multiple FWTs
Why GSM Gateway ???
For the Customer:
 Single ownership of Syntel for all FWTs
 All SIM Cards in one single machine
 Smart applications like Auto attendant, Call Billing software, LCR, etc with the Gateway
 Cost savings
Why GSM Gateway is required
Benefits of using Syntels GSM - PRI Gateway
Unique applications offered by the
Syntel GSM-PRI Gateway
Irrespective of the PBX type available at the customer end, the Syntel PRI Gateway offers a few unique
applications beneficial to the end user. It is at the discretion of the service provider to enable or disable
the same, given the requirement:
 Auto Attendant
 All calls received via the PRI Gateway can be greeted with a customized welcome message
before being transferred to the designated extension
 The welcome message can be different for the different time zones
 Upto 8 callers can be greeted simultaneously
An image enhancing application !!
 Call Billing
 All calls being routed via the GSM-PRI Gateway can be accounted for
w.r.t the applicable charges based on the destination number and call
duration
No waiting for end-of-the-month invoices to estimate cost incurred!!
Unique applications offered by the
Syntel GSM-PRI Gateway
Service Provider can offer SIM cards with different plan options so as to ensure optimum cost benefits
for the end user. E.g. a mix of SIMs with either better ISD rates, better STD landline rates, CUG numbers,
etc. can be provided. However, the interfacing gateway should have the intelligence of routing calls
appropriately to be able to capitalize on the same. The Syntel PRI Gateway supports a few such
applications:
 Trunk Budgeting
The gateway can ensure that all free calls available on the individual SIM cards are optimally used before
the billing begins by budgeting the individual SIM ports
 Least Cost Routing
If the service provider has provided different plan SIMs for out dialing, then the LCR application of the
gateway can ensure that all ISD calls get routed over the ISD best rate SIMS, all STD from the STD best
rate SIMs and the local ones via the local SIMs.
 Denied Numbers
The gateway has provision to store numbers that are barred from being out dialed via the SIM Cards
Any GSM SIM Connect & Syntel GSM-PRI Gateway combo:
 offers high motivation to organizations to switch either fully or partially to mobile networks for out
dialed calls owing to the significant cost savings offered by the GSM network
 can be offered as a substitute for non feasible areas w.r.t fiber-PRI connectivity to tap a potential
PRI customer
 Customer gets additional advantage of the smart applications of the gateway
Value Mobility Customers

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Gsm PRI Gateway

  • 2. GSM PRI Existing PBX Syntel PRI Gateway GSM-PRI Gateway - The Concept A GSM-PRI Gateway is an interface to connect multiple GSM SIM Cards to an existing EPABX using a PRI interconnect 30 SIM Cards are connected on the network side and a PRI line output on the EPABX trunk side When the EPABX extensions seize the PRI to out dial, the gateway accepts the request via the PRI line and in turn seizes one of the GSM SIM cards and out dials the number Similarly, when the SIM number is dialed by someone, then the gateway sends it via its PRI line and lands it on the designated extension of the EPABX
  • 3. Instead of a Gateway, why not use multiple FWTs for making outgoing calls ?? Difficulties in using separate FWTs: Large space required for installing multiple FWTs Power supply & backup for all FWTs No special features like Auto Attendant, Call Billing, etc Service issues with multiple FWTs Why GSM Gateway ???
  • 4. For the Customer: Single ownership of Syntel for all FWTs All SIM Cards in one single machine Smart applications like Auto attendant, Call Billing software, LCR, etc with the Gateway Cost savings Why GSM Gateway is required Benefits of using Syntels GSM - PRI Gateway
  • 5. Unique applications offered by the Syntel GSM-PRI Gateway Irrespective of the PBX type available at the customer end, the Syntel PRI Gateway offers a few unique applications beneficial to the end user. It is at the discretion of the service provider to enable or disable the same, given the requirement: Auto Attendant All calls received via the PRI Gateway can be greeted with a customized welcome message before being transferred to the designated extension The welcome message can be different for the different time zones Upto 8 callers can be greeted simultaneously An image enhancing application !! Call Billing All calls being routed via the GSM-PRI Gateway can be accounted for w.r.t the applicable charges based on the destination number and call duration No waiting for end-of-the-month invoices to estimate cost incurred!!
  • 6. Unique applications offered by the Syntel GSM-PRI Gateway Service Provider can offer SIM cards with different plan options so as to ensure optimum cost benefits for the end user. E.g. a mix of SIMs with either better ISD rates, better STD landline rates, CUG numbers, etc. can be provided. However, the interfacing gateway should have the intelligence of routing calls appropriately to be able to capitalize on the same. The Syntel PRI Gateway supports a few such applications: Trunk Budgeting The gateway can ensure that all free calls available on the individual SIM cards are optimally used before the billing begins by budgeting the individual SIM ports Least Cost Routing If the service provider has provided different plan SIMs for out dialing, then the LCR application of the gateway can ensure that all ISD calls get routed over the ISD best rate SIMS, all STD from the STD best rate SIMs and the local ones via the local SIMs. Denied Numbers The gateway has provision to store numbers that are barred from being out dialed via the SIM Cards
  • 7. Any GSM SIM Connect & Syntel GSM-PRI Gateway combo: offers high motivation to organizations to switch either fully or partially to mobile networks for out dialed calls owing to the significant cost savings offered by the GSM network can be offered as a substitute for non feasible areas w.r.t fiber-PRI connectivity to tap a potential PRI customer Customer gets additional advantage of the smart applications of the gateway Value Mobility Customers