Annex - IP Transit Definitions The definitions and rules of interpretation in this clause apply in this Annex for the Service of IP Transit or a Service which includes providing access to the Internet in any manner and are... Read More

Terms & Conditions Annex IP Voice Services Service Specific Terms and Conditions for IP Voice Services provided by the Company INTRODUCTION 1. Definitions - additional to those in the Main Terms and Conditions a. IPVS Means IP Voice... Read More

ISDN hangup cause codes provide information as to why a call has been terminated many are shared with SIP.  The list of hangup cause codes below provides detailed information as to the underlying cause behind a call hangup: Code No. 0 This is... Read More

      Important information for customers migrating from the IPVS service to the new updated IC-talk 3 service.     Contents Overview.. 1 Leading up to the migration. 1 Firewall settings / security guide. 2 Company... Read More

SIP Response Codes 1xx—Provisional Responses 100 Trying ExtendedThe search being performed may take a significant time so a forking proxy must send a 100 Trying response. 180 Ringing DestinationUser agent received INVITE, and is alerting user... Read More

SIP Response Codes 1xx—Provisional Responses 100 Trying ExtendedThe search being performed may take a significant time so a forking proxy must send a 100 Trying response. 180 Ringing DestinationUser agent received INVITE, and is alerting user... Read More

Overview On IC-talk HC Chan_SIP is the preferred option for an extension please DO NOT use PJSIP or other options unless specifically instructed to do so for a specific item. The default port number will be 5160 for Chan_SIP. This guide walks... Read More

Introduction This document provides a list of the Authorised Equipment, that BT Wholesale (BTW) support for use on IP Voice Services (IPVS). This list includes the following device types: IP Phones IP Phone Side Cars Analogue Terminal Adaptors ... Read More

When setting up a message to play on an Auto Attendant. You need to make sure of two things. The file format of the message needs to be CCITT u-Law WAV with 8kHz, 8Bit, Mono attributes. The file size needs to be 1000KB or less. It will not work if... Read More

Firewall & Security Guide In order for IP phones, portals and applications to be able to access the service, some firewalls may need adjusting to allow the traffic through.  If the End Customer is running inside to outside rules then ports... Read More