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Solutions for
Modern Business

SIP Trunking, Cloud PBX, IVR, Voice Broadcasting — powered by carrier-grade infrastructure with dedicated static IPs and 99.99% uptime.

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SIP 2.0 Protocol G.711 / G.729 Codecs HD Voice Quality 99.99% Uptime Static / Whitelisted IP T.38 Fax SRTP Encryption WebRTC Ready

Live Voice Dashboard LIVE

1,248

Active Calls

8,400+

Calls/Hour

4.9

MOS Score

2ms

Jitter

0.05%

Pkt Loss

99.99%

Uptime

OUR VOICE SERVICES

Complete Voice Infrastructure

Everything your business needs for crystal-clear, reliable voice communication.

SIP Trunking

Replace expensive PSTN lines with high-capacity SIP trunks over your existing internet connection.

Unlimited Concurrent Calls
Geographic / Non-Geographic DIDs
Pan-India DID Numbers
Inbound & Outbound Calling
T.38 Real-time Fax
Call Recording
CDR Reports

IVR System

Custom Interactive Voice Response to route callers intelligently and create a professional experience.

Multi-level IVR Menu
Text-to-Speech (Hindi + English)
Voice Message Recording
Business Hours Routing
Holiday Routing
CRM Integration
Real-time Analytics

Cloud PBX

Fully managed cloud-hosted PBX — all features of a traditional PBX without the hardware cost.

Unlimited Extensions
Auto Attendant
Voicemail to Email
Call Transfer & Hold
Conference Bridge 100+
Mobile App iOS/Android
Zoho / Salesforce Integration

Voice Broadcasting

Send automated voice messages to thousands simultaneously for alerts, OTPs, and campaigns.

Bulk Outbound Calls
Personalised Messages
DTMF Response Capture
Retry Logic
Real-time Reports
DND Compliance
REST API Access

Contact Center

Full-featured cloud contact center for inbound and outbound operations with agent management.

ACD Auto Call Distribution
Skill-based Routing
Live Monitoring & Whisper
Wallboard Display
Agent Performance Reports
Omnichannel: Call + Chat
Supervisor Dashboard

Secure VoIP

Enterprise-grade security with encryption, static IPs, and whitelisting for your voice infrastructure.

SRTP/TLS Encryption
IP Whitelisting
Static IP Assignment
Firewall & SBC Support
Anti-fraud Detection
VAPT Compliant
Dedicated VLAN Option

IP ADDRESS MANAGEMENT

SIP Server 103.XXX.XX.10 STATIC

Voice Gateway 103.XXX.XX.11 WHITELISTED

Backup SIP 103.XXX.XX.12 FAILOVER

IVR Engine 103.XXX.XX.13 DEDICATED

Media Server 103.XXX.XX.14 STATIC

 All IPs whitelisted on edge firewall. SBC protected.

STATIC & WHITELISTED IP

Dedicated IP for Your
Voice Infrastructure

Every OneTouch Voice customer gets dedicated static IPs whitelisted on our network. Your SIP credentials never share infrastructure.

IP Whitelisting

Your IP is whitelisted on our SBC — unauthorised traffic blocked.

Static IP Assignment

Fixed public IP for SIP registration — never changes.

Failover IP

Secondary IP auto-activates for seamless continuity.

Anti-fraud Detection

Real-time monitoring for toll fraud and SPIT attacks.

Dedicated VLAN

Enterprise customers get dedicated VLAN for isolation.

SIP SPECIFICATIONS

Technical Specifications

SIP Protocol

Protocol SIP 2.0 (RFC 3261)

Transport UDP / TCP / TLS

Media RTP / SRTP

Codecs G.711 (a/u), G.729, G.722, G.726

DTMF RFC 2833, SIP INFO, In-band

Fax T.38 Real-time, G.711 Passthrough

Network Requirements

Bandwidth/Call 85 Kbps (G.711), 32 Kbps (G.729)

Latency < 150ms one-way

Jitter < 30ms

Packet Loss < 1%

QoS DSCP EF (46) recommended

Firewall Ports SIP: 5060/UDP, RTP: 10000-20000/UDP

Supported PBX

Asterisk ✅ All versions

FreePBX ✅ Full support

3CX ✅ Certified

Cisco UCM ✅ Compatible

Avaya ✅ SIP Gateway

Yealink / Grandstream ✅ IP Phones

Features

Concurrent Channels Unlimited (plan-based)

DID Numbers Pan-India

CLI Presentation Customisable

Call Recording Included

CDR/Reports Real-time portal

API Access REST API available

VOICE PLANS

Choose Your Voice Plan

All plans include static IP, whitelisting, 24/7 support, and CDR reports.

VOICE CHANNELS

5 Channels

Starter Voice

₹ 1,999 /month

5 Concurrent SIP Channels
1 DID Number (Pan-India)
1 Static IP (Whitelisted)
G.711 + G.729 Codecs
24/7 Support
CDR Reports
Basic IVR (3 levels)

POPULAR

VOICE CHANNELS

25 Channels

Business Voice

₹ 4,999 /month

25 Concurrent SIP Channels
5 DID Numbers (Any State)
3 Static IPs (Whitelisted)
All Codecs + T.38 Fax
24/7 Priority Support
Real-time CDR + Recording
Advanced IVR (10 levels)
Cloud PBX Included
CRM Integration API

ENTERPRISE

VOICE CHANNELS

Unlimited

Enterprise Voice

₹ 9,999 /month

Unlimited SIP Channels
20 DID Numbers (Pan-India)
10 Static IPs + Failover
Full Codec Suite + SRTP
24/7 VIP NOC Support
Advanced Analytics
Hosted Contact Center
Dedicated VLAN
Custom SLA

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Solutions for Modern Business