Following our announcement earlier this month, this is a reminder that we will be adding some new IP addresses for both SIP signalling and RTP media from this 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 Saturday 1st December 2018 to avoid any potential issues. Further details can be found in our Inbound SIP and Outbound SIP interop guides.