
Our industry first SLA backed Session Initiation Protocol (SIP) Trunk is an advanced Voice Connectivity product, with the best in class IP solution. It replaces traditional multiple fixed PSTN lines with a single physical link that can support upto 1500 simultaneous calls. Scaling up and down call capacity on our SIP Trunk is very easy, quick and can be done in multiples of 10 channels. Our SIP Trunk reduces the cost of multiple lines, maintenance, as well as hardware requirements for multiple PRI ports. Enterprises can opt for our SIP Trunk solution to overcome issues related to scalability, maintenance and convergence. This innovative, best in class SIP Trunk Services has won industry awards and offers easy integration with other IP technology platforms. Our unmatched SLA offering includes : Network service availability of 99.5%, a complaint MTTR( Mean time to resolve) of 4 hours and service credits in case of commitment breach.
SIP Trunk Advantages

Easy and quick scalability

Simplifies network

Smaller upgrades & downgrades

Flexible range
SIP Trunk Features
Details | Standard |
Interface | Ethernet |
Minimum number of channels | 30 |
Direct Inward Dialing (DID) facility | |
Default DID | Equal to number of channels |
Direct Outward Dialing (DOD) facility | |
Closed user group facility | |
Dual last mile | |
On request channel upgrade / downgrade | |
Service Delivery | Class 5 NGN Switches |
Tele marketing number | 140 |
Meet Patel, Operation Head of Ausszz Group explains how his organisation is an immigration and education consultancy. He further explains how SIP Trunk and Leased Line services ensure smooth functionality within the organisation with satisfactory customer service. For more information on our services, visit the link: https://www.tatateleservices.com/en-in
-Meet Patel (Ausszz Group)


Nandkumar Palkar, Director of Global Development and Transformation from Blancco Technology Group explains how Tata Tele Business Services PRI, SIP Trunk, Leased Line and VoIP services have helped his diagnostics company achieve reliability and connectivity through good bandwidth and high-quality solutions. For more information on Tata Tele Business Services Business Services, click on the link: https://www.tatateleservices.com/en-in
-Nandkumar Palkar (Blancco Technology Group)


Pradip Sarkar, Head-IT, Tata Metalik talks about how the up gradation of telecom system to Tata Tele Business Services has benefited his company and reduced overall costs.
-Pradip Sarkar (Tata Metalik )


Miheer Srinivas, Chief Technology Officer of Metric Global considers Tata Tele Business Services a true Enterprise player, offering enterprise grade connectivity and solutions. He shares how Tata Tele Business Services has enabled them to focus on their core business through their proficient service, overcoming difficult challenges of last mile connectivity. Through the products PRI, SIP Trunk and Leased line Tata Tele Business Services has enabled Metric Global to Do Big.
-Miheer Srinivas (Metric Global )


Effort BPO needed a cost-effective PSTN access solution for their outbound processes which could be easily scalable, carry an assurance of high uptime, quick turn-around time, cost effective and be inter-operable with Genesys predictive dialer. Tata Tele Business Services rose to the challenge and delivered yet another happy customer with the latest SIP Trunk Solution.
-Samit Chakravarty (Effort BPO )


Watch N Ravishankar, CIO - Tata Sky talk about how Tata Teleservices has played a lead role in architecting and designing solutions for them using PRI & SIP Trunk services.
-N Ravishankar (Tata Sky)


Watch Manoj Kanjani, CTO - Telemart Shopping Network Pvt. Ltd. speak about Tata and how they have helped provide telecom solutions for them. He also speaks about how they started with PSTN services and gradually moved on to ISDN and SIP Trunk which has helped them clear various digital bottlenecks faced by them at various locations.
-Manoj Kanjani (Telemart)


Vipul Mathur currently runs the core laundry business of Hindustan Unilever Ltd.. HUL powered by Tata Teleservices launched their award winning program Kan Khajura Tesan. This enabled HUL to connect various brands to the rural masses, helping them achieve their targets in the process.
-Vipul Mathur (Hindustan Unilever Limited )


Our business is running without any issue after migrating to TATA
-Ramana Gayam (Dell Inc)
We wish Tata group a very good future
-Himansu Sekhar Malla (Hinduja Global Solution Ltd)

We appreciate their flexibility in providing services as per our operational requirements.
-Elwin Dsouza (Intelenet)
We would like to also like to congratulate the team for their promptness, efficiency and commitment towards their customers.
-Manjunath Y P (KPMG)
We are happy to be associated with Tata Teleservices, a trusted brand in the Telecommunication Industry.
-Vivekananda Prasad (Tata Sky)
We are associated with Tata Teleservices for over 10 years
-Prakash Kudalkar (Hinduja Global Solution Pvt Ltd)
We wish to put on record your Quality service and ownership, which is much appreciated.
-Lakshmikumar K (Aditya Birla Retail Limited)
We treat Tata Teleservices as our primary service provider for all telecom related solutions.
-Giridhar VB (Minacs Pvt. Limited)
Moving to SIP Trunk, with 100 channels at first, and then ramping upto 300, was the most cost effective move
-Mayank Awasthi (VMC Technologies)
Case Studies
Case Study
Cloud Service Provider benefits from Cost-Optimum and Seamless Voice Solution
Cloud Service Provider benefits from Cost-Optimum and Seamless Voice Solution
Case Study
Toll-Free Number enables Credit Company to Improve Customer Connect
Toll-Free Number enables Credit Company to Improve Customer Connect
Case Study
Telecommunication Leader witnesses business growth with new Voice Services
Telecommunication Leader witnesses business growth with new Voice Services
Case Study
Voice DTMF provider moves services to the Cloud
Voice DTMF provider moves services to the Cloud
Case Study
Leading Manufacturing firm achieves Secure, Cost-Effective Voice Connectivity across multiple locations
Leading Manufacturing firm achieves Secure, Cost-Effective Voice Connectivity across multiple locations
Case Study
Digital Mapping Company Achieves Cost-Effective and Reliable Voice Connectivity
Digital Mapping Company Achieves Cost-Effective and Reliable Voice Connectivity
Case Study
Software Publishing Company Receives Secure, Uninterrupted Voice Connectivity
Software Publishing Company Receives Secure, Uninterrupted Voice Connectivity
Case Study
Healthcare Solutions Provider Achieves Swift, Reliable Voice Connectivity
Healthcare Solutions Provider Achieves Swift, Reliable Voice Connectivity
Case Study
Auto components firm benefits from enhanced voice connectivity
Auto components firm benefits from enhanced voice connectivity
Case Study
Manufacturing company upgrades customer and inter-office connectivity
Manufacturing company upgrades customer and inter-office connectivity
Case Study
SIP Trunk for ZS Associates
A leading sales and marketing consultancy required scalable enterprise-grade connectivity
Case Study
SIP Trunk Service for Vindhya E-Infomedia
Vindhya E-Infomedia Private Limited required end-to-end voice connectivity
Case Study
SIP Trunk Service for Mcfayden Solutions
McFadyen Solutionslooked at reducing cost of international business calls