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 This article provides a complete overview of how enterprises can integrate with Exotel’s SIP Trunking (SIP).  It includes configuration options (TCP, TLS, FQDN), onboarding steps, best practices, and supported use cases.

Overview

 This article provides enterprise customers with technical steps to integrate Exotel’s SIP Trunking (vSIP) with your PBX, SIP server, or SBC over TCP (Mumbai PoP).  It outlines configuration practices, header formats, best practices, and validation techniques.

Exotel SIP Trunking – TCP (India)

 This article provides technical integration steps for enterprise customers setting up Exotel’s SIP Trunking (vSIP) over TLS via the Mumbai PoP.  It includes configuration guidelines, SIP headers, and best practices for secure SIP-based PSTN interconnects.

Exotel SIP Trunking – TLS (India)

 This guide outlines how to integrate Exotel’s SIP Trunking (vSIP) with your voice application flow (e. g.

Exotel SIP Trunking to Flow Integration Guide

 Voice AI and Contact Center (CC) platforms often operate robust SIP-based (vSIP) infrastructures for AI-led and agent-assisted conversations.  However, they typically lack direct access to India’s PSTN (landline and mobile networks) due to licensing and regulatory restrictions.

Flow and API Configuration Guide for Voice AI & Contact Centre Platforms

 This support article explains how to configure Exotel’s Virtual SIP Trunking (vSIP) using Fully Qualified Domain Name (FQDN) based trunking instead of fixed IPs.  It details how the FQDN-based approach works, when it should be used, and why it offers benefits in enterprise-grade SIP deployments.

Exotel Virtual SIP Trunking – FQDN-based

Connect Applet Setup for Inbound SIP Trunking

SIP Trunk Configuration

CCaaS

Dynamic SIP Trunking

Manage Exotrunks

Setup Call Flow with Exotrunk

Exotel SIP Trunking – Quick Start

Call Directions

Create Trunk

Map Phone Number to Trunk

When to use Credentials vs ACL (Whitelisted IPs)

Map ACL to Trunk (Whitelist IP)

Create credentials (digest auth) API for a Trunk

Map Destination URI to Trunk

Manage & View

Reference

Detailed SIP Trunking API Reference

Network Requirements for VoIP — QoS & Bandwidth

Network & Firewall Configuration

SIP Error Codes & Troubleshooting Guide

FAQs

StreamKit Cloud SIP trunking Setup