IP Centrex Features
IP Centrex allows small and medium size enterprises to deploy PABX/ CUG service without really installing system physically in their premises.
IP Centrex have no limitation of Zone . It is PAN India Service.
A customer can have a PAN India IP centrex i.e. numbers anywhere in the country can be brought into a single Centrex group. Each member of the group can access the other by dialing a short code.
The IP centrex supports different types of terminals of the enterprise in the same group, such as mobile terminals, landline phones.
Number Presentation/CLIP of intra-CENTREX call is the short number.
Dialing with the long number is recognized as off-net call, even if the caller and callee are Centrex users and in the same group.
It works between NGN, PLMN and 5ESS and EWSD PSTN Subscribers.
A CENTREX Group can have max 10,000 subscribers.
Customer can request for any short code range except starting with 0 ,1 and 9.
If a BSNL mobile subscriber roams to other operator’s network, he can’t use the Centrex service.
How to Get IP Centrex?
Customers can Get the IP Centrex service through SMS/E-mail/IVRS/BSNL Portal/BSNL CSC/Call Centre.
Any customer requiring this service has to submit the list of numbers (LL/Mobile ) to be added to IP Centrex Group. Fill up the CAF, selecting IP Centrex category and has to submit it to CSR/EB with required documents
Sending SMS request for IPCENTREX Service requests Format is : IPCENTREX followed by STD code i.e IPCENTREX <space><std code> to 54141. SMS is pushed to Call Centre. Call Centre agent speaks to customer and raises request on CRM.
Fault handling mechanism: Subscribers can book service request / complaint through 1500/198
The Centrex dialing method
Centrex Short Code length is 3 to 5 digits.
Landline Customer will dial short code to access the LL/Mobile number of the same group. Mobile Customer will dial 1261 +Short code to access the LL /Mobile number of the same Group.
IP Centrex Tariff
No. of customer in Group
Monthly Plan Charges Intra Circle (in Rs.)
Monthly Plan Charges INTER Circle (in Rs.)
Less than 25
More than 25
Rental for Centrex will be based on number of connections within the group and category of Centrex.
There will be possibility of change of Category.
IP Centrex will be offered on fixed rental basis to the customers
Subscriber will not be charged for per call (both local &STD) within Centrex
IP Centex services will be provided to both Post and Prepaid subscribers
Plan/rental would be applied on individual subscriber
Even if some of subscriber moves out of group , the slab will not change.
There will not be any GP1&GP2 for IP Centrex services.
IP Centrex Group Categories
Within STD Code/City/Apartment
Across the Zones
Number Within Group may be from Different Zones and from different Services like LL,GSM
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