Unlike in traditional telephony, where bundles of physical wires are delivered from the service provider to a business, a SIP trunk allows a company to replace these traditional fixed PSTN lines with a SIP trunk over an IP based transport network.SIP Trunk connects a private business-class phone system with an IP based PSTN.
Benefits:
Simplify
- No multiple physical links
- Open standards
Save
- No hardware upgrade required for multiple PRI ports
- Low maintenance
- investment protection
Scale
- Easy upgrades with BW increase
- Single port termination
- Future proof
Technical Specifications:
- The SIP Trunks will be delivered through Tata state-of-the-art Class 5 NGN switches.
- Minimum 20 channels have to be subscribed by the customer. This can scale up to 1500 on the same physical link.
- Options to upgrade/ downgrade channels on the same physical link.
- By default, bandwidth sizing shall be done considering the G.711 codec.
- SIP Trunk is offered in "USER Mode" so CPE has to be registered with Tata SBC
Features
· Corporate Tunes: Signature Tunes on SIP Trunk allows customization of CRBT ( caller ring back tone) through a simple service request.
· DID/DOD functionality
· Basic Emergency Services - Number Translation Services to divert to nearest Emergency Help Centres (eg. 100, 101)
· Scalability on a single link from 20 simultaneous calls to 1500 simultaneous calls.
· Pooling of free call value (FCV) available on SIP Trunk rental schemes as well to help with optimal utilization of FCV
· Additional DID on chargeable basis
