Ports used by UsVox Hosted PBX user devices
Our advice is to always disable Router or Firewall ‘SIP ALG’ before you begin to open ports on your network security settings, if your Router or Firewall don’t have any disabling for SIP ALG choices we strongly advise you to contact your Router or Firewall technical support and let them do the work they are expert on this matter.
The following are the ports and protocols that Hosted PBX user devices use.
Port numbers and Protocol
UDP 5060; TCP 5060, 5061 SIP, SIP TLS
UDP 35000-65000(assigned dynamically) RTP, SRTP
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