PC
Positive Communication
Enterprise Solutions
TTBS Partner
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🏅 Authorized TTBS SIP Trunk Partner Since 2010

TTBS SIP Trunk
Replace PRI Lines,
Save Up to 70%

Enterprise-grade SIP Trunking from Tata Tele Business Services — works with your existing PBX, crystal-clear voice quality, and 99.9% uptime SLA. Pan-India.

✓
Save 40–70% on monthly call costs vs PRI lines
✓
Works with existing EPABX / PBX — no rip-and-replace
✓
Scale channels instantly — pay only for what you use
✓
Caller ID (CLI) presentation on all outbound calls
✓
99.9% uptime SLA with TTBS's national backbone
70%
Max Cost Savings
1000+
Concurrent Channels
99.9%
Uptime SLA
1 Day
Activation Time
Get Free SIP Trunk Quote
Tell us your current PRI count — we'll show you exact monthly savings.
📞 Call Now
⚡ Authorized TTBS Partner | 🔒 Free Cost Comparison
Cost Calculator

SIP Trunk Savings Calculator

Enter your current PRI details and see your monthly savings by switching to TTBS SIP Trunk.

💰 How Much Will You Save?
Indicative savings. Actual savings depend on call volume, call mix, and current PRI tariff. Contact us for exact figures.
Current PRI Cost / Month
₹38,500
Rental + call charges
SIP Trunk Cost / Month
₹17,200
Channels + call charges
Your Monthly Savings
₹21,300
~55% savings

* Indicative only. Share your last PRI bill with Positive Communication for an exact savings report.

Key Features

What's in TTBS SIP Trunk

📞
Unlimited Concurrent Channels
Scale from 5 to 1,000+ concurrent call channels. No physical infrastructure — add channels in hours as your business grows.
🆔
CLI / Caller ID Presentation
Present your business number on all outbound calls — landline DID or mobile CLI. Essential for customer trust and callbacks.
🌍
National & International Calling
Crystal-clear voice quality for local, STD, mobile, and international calls over TTBS's tier-1 national internet backbone.
🔢
DID Numbers for Any City
Get virtual DID numbers for Delhi, Mumbai, Bengaluru, Chennai — project a local presence in every city your customers are in.
🔁
Works with Your Existing PBX
No need to replace your current EPABX. TTBS SIP Trunk connects via VoIP gateway or direct SIP — preserving your PBX investment.
🛡️
99.9% Uptime SLA
TTBS's national backbone ensures your voice connectivity is always available. Automatic failover to backup routing on any link failure.
How It Works

How SIP Trunk Replaces PRI

01
🌐
Internet Connection
Your office internet (Tata ILL recommended) carries both data and voice traffic — no separate phone lines needed.
02
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SIP Trunk / VoIP Gateway
TTBS SIP Trunk connects to your PBX via a SIP-compatible interface or a VoIP gateway for older EPABX systems.
03
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Make & Receive Calls
All inbound and outbound calls route over TTBS's voice network — same experience as PRI but 40–70% cheaper.
04
📊
Call Analytics & CDR
Detailed call data records (CDR) for all calls — duration, cost, direction — for billing, compliance, and fraud monitoring.
Technology Comparison

SIP Trunk vs PRI — Key Differences

Why thousands of Indian businesses are migrating from PRI to SIP Trunk every year.

Feature
SIP Trunk (TTBS) ⭐
PRI / ISDN Lines
Monthly Cost
40–70% less than PRI
High (rental + usage)
Scalability
Add channels in hours
Weeks of provisioning
Physical Infrastructure
None required
Copper lines + PRI cards
Number Portability
Port existing numbers
Tied to physical line
DID Numbers
Any city, instant
Physical line required
International Calling
Lower rates over IP
Higher per-minute rates
Business Continuity
Geo-redundant routing
Single point of failure
Call Analytics / CDR
Detailed real-time CDR
Basic billing records
Why Choose Us

Why Get SIP Trunk from
Positive Communication?

🏅
Authorized TTBS SIP Trunk Partner
We are an officially authorized TTBS channel partner. You get authentic TTBS SIP Trunk pricing, SLA contracts, and direct escalation support.
📋
Free PRI Bill Analysis
Share your last 3 months' PRI bills with us — we'll show you exactly how much you'll save after migrating to TTBS SIP Trunk. No obligation.
🔧
Works with Any PBX
We assess your existing EPABX (Avaya, Cisco, Panasonic, Matrix, NEC, Asterisk) and configure the right VoIP gateway setup for seamless migration.
⚡
Activation in 1–3 Days
Once order is confirmed and feasibility approved, TTBS SIP Trunk is typically activated within 1–3 working days — far faster than PRI provisioning.
🌐
Pan-India Multi-Site SIP
Running multiple offices? We provision unified SIP Trunk across all your locations with centralized billing and single-point support from Positive Communication.
🛡️
24×7 NOC & Fraud Management
TTBS monitors your SIP trunk 24×7 for call quality, fraud patterns, and uptime — with automatic alerts and rapid resolution.
FAQ

SIP Trunk Frequently Asked Questions

What is SIP Trunk and how does it work? +
SIP Trunk (Session Initiation Protocol Trunk) delivers voice calls over your internet connection instead of traditional copper PRI lines. It connects your existing PBX to TTBS's voice network via the internet — giving you the same call functionality at 40–70% lower cost, with flexible channel scaling and enhanced features like DID numbers and CDR analytics.
How much will I save by switching from PRI to SIP Trunk? +
Most businesses save 40–70% on their monthly telecom bill after migrating from PRI to TTBS SIP Trunk. A business with 3 PRI lines spending ₹35,000–₹45,000/month typically reduces to ₹14,000–₹20,000/month on SIP Trunk. Positive Communication offers a free PRI bill analysis with an exact savings projection — call +91-9910074888 or share your bill via WhatsApp.
Will my existing PBX work with SIP Trunk? +
Yes, in most cases. TTBS SIP Trunk works with SIP-compatible PBX systems (Cisco, Avaya, Asterisk, FreePBX, 3CX) via direct SIP integration. For older EPABX systems (Panasonic, Matrix, NEC), a VoIP/FXO gateway is used to bridge the EPABX to the SIP trunk. Positive Communication assesses your specific PBX and recommends the right configuration.
Can I port my existing phone numbers to SIP Trunk? +
Yes. Your existing business landline and DID numbers can typically be ported to TTBS SIP Trunk, retaining all your published numbers. The porting process takes 7–15 working days depending on the current operator. Positive Communication manages the entire porting process. New DID numbers for any Indian city can also be provisioned immediately.
Do I need a dedicated internet connection for SIP Trunk? +
For best voice quality, a dedicated Tata ILL (Internet Leased Line) is strongly recommended — it provides the low latency (<5ms) and jitter control that voice calls require. Broadband can work for low call volumes but may experience quality degradation during peak hours. Positive Communication can bundle Tata ILL + SIP Trunk for optimal performance and cost.
How quickly can SIP Trunk be activated? +
TTBS SIP Trunk can typically be activated within 1–3 working days of order confirmation and technical assessment. For existing number porting, allow 7–15 working days. New DID numbers are provisioned same-day. Positive Communication handles the complete setup including PBX configuration and testing.
Ready to Replace PRI
with SIP Trunk?

Share your last PRI bill with Positive Communication — we'll give you an exact savings report and free migration plan within 24 hours.

💬 Share PRI Bill on WhatsApp 📞 Call +91-9910074888
✅ Authorized TTBS Partner
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