> ## Documentation Index
> Fetch the complete documentation index at: https://help.optua.co.uk/llms.txt
> Use this file to discover all available pages before exploring further.

# Cloud Voice Infrastructure IP addresses

Should you wish to restrict traffic to your network, and need IP ranges to authorise, please ensure the following are granted:

<Info>
  80.209.159.0/24\
  188.240.172.0/24\
  77.92.64.55
</Info>

We use the following ports for our SIP and RTP traffic:

<Info>
  5060/5061 - SIP Signalling\
  7000/7001 - SIP Signalling (ALG avoidance)\
  16384-32768 - RTP/RTCP
</Info>