Unified Communications as a Service (UCaaS)
Customer Interaction Suite
Cloud & Edge
Cyber Security
Content Delivery Network
Enabling businesses with unhindered global connectivity
The challenges of making it big in the international market are plenty; however, with us, communication won’t be one. With Tata Communications’ Global SIP network, you can now enrich your business’ unified communication strategy as per your requirements. Our Global SIP Connect service empowers service providers and allows them to serve customers even in markets not yet covered by their networks. “Automate & Integrate your business applications with Powerful SIP Trunking APIs to order numbers instantly.”
Contact us at: api@tatacommunications.com
Explore our SIP trunking solutions
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Enterprise Voice Solutions
Tata Communications offers you the opportunity to retain and enhance customer conversion with hosted voice solutions with our cutting-edge Managed Voice over IP (mVoIP) services. Using international calling over the internet, we ensure complete connectivity and superior call quality.
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Cloud Number Service
GlobalRapide Cloud Number is a cloud-based telephony service that provides inbound and outbound voice service functionality catering to specific countries calling needs. It is a comprehensive solution that offers seamless communication, enhanced outbound calling, advanced connectivity, and flexible integration.
![enterprise voice solutions]()
Enterprise Voice Solutions
Tata Communications offers you the opportunity to retain and enhance customer conversion with hosted voice solutions with our cutting-edge Managed Voice over IP (mVoIP) services. Using international calling over the internet, we ensure complete connectivity and superior call quality.
![]()
Cloud Number Service
GlobalRapide Cloud Number is a cloud-based telephony service that provides inbound and outbound voice service functionality catering to specific countries calling needs. It is a comprehensive solution that offers seamless communication, enhanced outbound calling, advanced connectivity, and flexible integration.
Benefits Global SIP Connect brings to your business
Better customer experience, less complexity
Learn how to unlock your success
At Tata Communications, driving your success is our key business priority. Our designated Customer Success Team ensures that you achieve your desired business outcomes throughout your journey with us.
Frequently Asked Questions
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Session Initiation Protocol (SIP) trunking is a service offered by a communications service provider that uses the protocol to provision voice over IP (VoIP) connectivity between an on-premises phone system, and the public switched telephone network (PSTN).
SIP is used for call establishment, management and teardown. SIP trunking is typically sold as a replacement for digital Primary Rate Interfaces (PRIs), which are based on time-division multiplexing (TDM).
SIP trunking is widely deployed by communications service providers across the globe, many of which are using it to replace their TDM-based services. By delivering SIP trunking over existing Ethernet or Multiprotocol Label Switching (MPLS) network infrastructure, the providers reduce the cost and management complexity associated with legacy digital platforms while also provisioning additional features.
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Technically, there is no set number of channels in a SIP trunk. The number of channels on your SIP trunk will expand and contract as you connect and disconnect calls. So, if you have 20 calls going at once, your SIP trunk will have 20 channels to accommodate these calls
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A session border controller (SBC) is a network element deployed to protect SIP-based voice over Internet Protocol (VoIP) networks.
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SIP trunks offer greater flexibility than PRI by connecting calls over the internet using an internet connection. It handles as many concurrent calls as your PBX and bandwidth supports. IT experts enjoy SIP trunk services because they maintain full control of their PBX and pair it with the scalability of the cloud.
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A SIP trunk can have as many channels as you need. Most SIP trunk providers sell channel capacity in batches, but you could have 1 million channels in your SIP trunk if that's how many calls you potentially had to and from your business
Customer success stories
Rajkumar V Kannan
Data Center and Networking
Zoho Corporation
Zoho Corp. India is a service company, we provide cloud solutions hosted on our data center and CRM software services to small, medium and large enterprises.
Kiran Varma
Associate Director - IT Services
Dr Reddy's Laboratories Limited
Inherent network security, along with the performance and resilience of the Tata Communications Global VPN, come as part of the package. That makes us supremely confident in the decision we took.
Satish Kumar Patial
Manager - Network Operations
Cotiviti
Something I like about Tata Communications is their its network reachability that enables us to connect our remote sites and destinations.
