As part of our ongoing network expansion, we are introducing some new IP addresses for both SIP signalling and RTP media from Saturday 1st December 2018.

If you are filtering SIP and/or RTP traffic for either inbound or outbound calls, you will need to update your firewall rules before 1st December 2018 to avoid any potential issues.

For more information, please see our revised Inbound SIP and Outbound SIP interop guides.