Stay up to date with the latest changes to Synthflow.
Global SIP trunking — new signalling and media IPs
We’re expanding the Global region with additional signalling and media infrastructure. New IPs must be allow-listed before the rollout on May 21, 2026.
This change affects Global-region SIP trunking customers only. US and EU regions are not affected.
What you need to do
Update your firewall or ACL rules to include the new Global-region signalling and media IPs:
New signalling IPs (ports 32681 UDP/TCP, 32682 TLS):
34.75.151.191/3234.23.45.239/3235.231.28.238/32
New media IPs (UDP 10000–60000):
34.139.134.5834.73.14.1634.139.114.28
See the SIP trunking network guidelines page for the full updated allow-list, effective May 21, 2026.
If you have questions, raise a support ticket.