If you are on our HVS services and currently have a firewall in place, the following changes will need to be made in order for the upgrades to happen.
The subnet upgrades are to be rolled out over the next 6 weeks commencing on 18th May 2020.
End Customers using a firewall or Access Control List (ACL) to secure their network, must add the following subnets to their firewall configuration (i.e. the new subnets are to be configured in addition to those already present):
> 220.127.116.11/26 > 18.104.22.168/26 > 22.214.171.124/26
For the following ports/protocols:
> IP Phone & ATA Signalling SIP UCP/TCP 5060 – 5075
> SIP Trunk Signalling (Dynamic) SIP UCP/TCP 5060
> SIP Trunk Signalling (Static) SIP UCP/TCP 5060
> IP Phone & ATA Media RTP UDP 32767 – 65535
> SIP Trunk Media (Dynamic & Static) RTP UDP 32767 – 65535