Why global voice gets complicated fast and expensive faster
Fragmented global voice estates slow teams and inflate cost
Legacy contracts, multiple carriers, local PBXs, and SBCs create disconnected call paths. Routing, billing, and support vary by region - driving cost, delays, and confusion.
Hybrid work exposes cracks in enterprise calling
Remote and office users expect the same calling experience everywhere, but PSTN access, numbers, devices, and policies often break consistency across locations and networks.
Compliance and CLI complexity grow country by country
Emergency services, local regulations, and CLI delivery differ by market. Keeping enterprise voice compliant demands expert coverage, constant updates, and regional monitoring.
Fraud and quality risks hide inside the call path
Without proactive controls, enterprises face toll fraud, QoS variability, and limited visibility into call performance - leaving risks undiscovered until users feel the impact.
Voice chaos quietly derails real work
Employees switch apps, manage multiple numbers, and fight spam and voicemails just to stay reachable and productive.
Operational voice overhead drains scarce IT resources
Provisioning users, managing devices, driving adoption, and supporting multiple platforms consumes IT capacity - turning voice into a daily burden instead of a strategic asset.
The smarter path to future-ready enterprise collaboration
Combine Google’s AI-powered calling experience with Tata Communications’ global PSTN and managed services. Modernise voice today while keeping existing carriers via SIP Link and plan your transition to cloud-native connectivity at your own pace.
Unified cloud voice experience
Global PSTN & connectivity by Tata Communications
Centralised admin & device management
Service automation & managed services
A unified, intelligent platform for cloud-native communication
Built for leaders defining the future of enterprise work
CIOs
IT Directors
Procurement and Operations teams
Network/Voice Architects
Explore use cases
1
Legacy PBX modernisation
- Reduce cost and complexity without disruption
- Keep existing numbers and carriers using SIP Link
- Move users to cloud voice incrementally
- Simplify management and user experience
2
Global Workspace standardisation
- One collaboration and voice platform globally
- Google Voice integrated natively into Workspace
- Tata Communications delivers regional PSTN coverage
- Consistent call experience across countries
3
Hybrid workforce enablement
- Enable “work from anywhere” without compromise
- One number per user, any device
- AI‑powered productivity features
- Reduced dependency on desk phones and offices
4
Rapid expansion or new markets
- Scale fast without building infrastructure
- Cloud numbers and global voice rollout
- Centralised provisioning and automation
- Minimal on‑site dependencies
5
Vendor consolidation
- Fewer partners, clearer accountability
- Single solution covering licenses, connectivity, infrastructure, and operations
- End‑to‑end managed UCaaS model
- Predictable cost and governance
A single partner for cloud voice and service automation
Built‑in intelligence
Google AI enhances every call with features like voicemail and call transcription, spam filtering, noise suppression, call routing, and automated assistants.
Global reach
Get global PSTN connectivity, cloud numbers, and SIP integration, allowing enterprises to support users across countries while maintaining a consistent experience.
Flexible migration
Keep existing carriers and phone numbers using SIP Link, or adopt a fully cloud-based model where available, without business disruption.
Our pricing plans
Pay-as-you-go or domestic bundles
1 local number
Emergency calling in most countries
Inbound & outbound calling plans available
* Customers can procure Google SIP Link or Google Voice licenses through their existing Google partners
Pay-as-you-go or domestic bundles
Google SIP Link/Google Voice Licenses
1 local number
Emergency calling in most countries
Inbound & outbound calling plans available
Pay-as-you-go or domestic bundles
Managed Services : Day1(Initial Installation and Configuration) + Day2 (In-Life Management)
Google SIP Link/Google Voice Licenses
1 local number
Emergency calling in most countries
Inbound & outbound calling plans available
A partner you can trust
Collaboration that keeps pace with growth
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400+
global destinations
700+
mobile operator interconnections
32Bn
annual voice minutes
1600+
service provider relationships
Why choose Tata Communications?
Why choose Tata Communications?
Global coverage & compliance
-
PSTN replacement/cloud numbers across 58+ countries; CLI & emergency services aligned to local regulation
Fraud mitigation & quality
-
Blocking millions of fraud attempts monthly; QoS analytics (MOS, ASR, jitter, packet loss)
Automation & self‑service
-
Automated ordering, billing, provisioning, and user management
Device & platform expertise
-
Lifecycle management for leading OEMs; cross‑platform support for Google, Microsoft, Cisco, Zoom, etc.
Our latest resources
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Tata Communications on Al, collaboration and future of UC
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