SIP Trunk Configuration Instruction with Twilio Elastic trunking

Introduction

This article provides you with a step-by-step SIP Trunk Configuration of ProSBC with Twilio Elastic Trunking, using the Web Portal configuration tool. Complete the general installation configuration steps, before you begin configuring your specific scenario. In this guide FQDN is (telcobridges.pstn.twilio.com) configured in the Twilio console. You can find more details about how to create an Elastic Trunking in Twilio from the following link Create and Configure Trunks

Twilio Elastic SIP Trunk Example

Configuration Steps

(Step 1) Create IP Network	(Step 2) Create Protocol Stack	(Step 3) Create Call Route
Configuring an IP Virtual Port Configuring a VLAN Configuring IP Interfaces Create an IP port range	Create an IP port range Create a SIP stack Create a SIP transport server Modify profile Allocate a SIP NAP	Create a first call route

NAP Configuration for Twilio Elastic Trunking

• See Create SIP NAP

In this example, we will use telcobridges.pstn.twilio.com trunk information

NOTE: Connection to Twilio Elastic SIP Trunking is available in multiple geographic edge locations. If you wish to manually connect to a specific geographic edge location that is closest to the location of your communications infrastructure, you may do so by pointing your communications infrastructure to any of the following localized Termination SIP URIs:

• {example}.pstn.ashburn.twilio.com (North America Virginia)
• {example}.pstn.umatilla.twilio.com (North America Oregon)
• {example}.pstn.dublin.twilio.com (Europe Ireland)
• {example}.pstn.frankfurt.twilio.com (Europe Frankfurt)
• {example}.pstn.singapore.twilio.com (Asia Pacific Singapore)
• {example}.pstn.tokyo.twilio.com (Asia Pacific Tokyo)
• {example}.pstn.sao-paulo.twilio.com (South America São Paulo)
• {example}.pstn.sydney.twilio.com (Asia Pacific Sydney)

Click here for more information on Twilio Elastic SIP Trunking IP Addresses

• Name
• Default Profile
• Proxy Address
• Proxy Port Type
• Proxy Port
• Poll Remote Proxy
• Accept only authorized users

Route Configuration for Twilio Elastic Trunking

• See Create a first call route

In this example, we will create an outgoing and incoming routes for Twilio Elastic Trunk

Route for outgoing to Twilio

Route for incoming from Twilio

List of Parameters

• Name
• Routeset Name
• Called
• Calling
• NAP
• Remapped Called
• Remapped Calling
• Remapped NAP
• Source call leg remapped Profile
• Destination call leg remapped Profile

Custom Parameters

• prio (or priority)
• additonal_naps
• domain