SIP Trunk


SIP trunking is a voice over Internet Protocol (VoIP) technology and streaming media service based on the Session Initiation Protocol (SIP) by which Internet telephony service providers (ITSPs) deliver telephone services and unified communications to customers equipped with SIP-based private branch exchange (IP-PBX) facilities.

Adopting VoIP and SIP trunking allows organizations more options for communications than legacy PRI and Centrex services via major telecommunications providers.

Most unified communications applications provide voice, video, and other streaming media applications such as desktop sharing, web conferencing, and shared whiteboard.

As simple as a set of protocols that are delivered via A1 Routes SIP Server enabling your organization to unlock the benefits of Internet-based phones.
  • A1Routes offers affordable, high quality and highly reliable SIP Trunk for your office needs.
  • You can easily configure our SIP Trunk with your existing PBX system or we will configure one.
  • A1Routes SIP trunk is one of best no-frills voice service in the industry with no minimum spend, commitment or contract.
  • A1Routes delivers audio in shortest hops possible thus creating clarity of speech.
  • We have the technology to help you overcome any roadblocks.

Fraud Control

A1Routes provides best in industry and easy to use fraud mitigation tools

1. Disable outbound SIP credentials

a. Enable IP authentication to allows call on your account from only whitelisted IP addresses.

2. Maximum Outbound Rate

a. Block any call that cost more than set maximum rate in control portal.

3. Blocked call Alerts

a. When a call is attempted on your account and was blocked due to restriction set by you get email alerts.

4. Destination Restriction

a. You can whitelist/black list destinations of your choice using our easy to use Destination restriction feature in control portal.