Ports used by ICE Telephony
The ICE Telephony component behaves like a desktop or mobile client in its communication with the rest of the ICE server infrastructure: That is, it uses port 443 and 7443 for communication with the ICE Server and Rallypoints. However, for communication with a call manager or PBX, ICE Telephony utilizes the session initiation protocol (SIP) over the following ports:
Port | Use |
5060/udp/tcp | SIP system signaling between ICE Telephony and the call manager or PBX. |
5061/tcp | If TLS/SRTP is enabled. |
5070-5270/udp | SIP signaling for registered dial numbers. Each dial number requires two ports; ICE Telephony supports up to 100 registered dial numbers. Not all ports in this range will be used unless a system is configured with 100 registered dial numbers. |
16384-20480/udp | Realtime transport protocol (RTP) traffic conveying call audio between ICE Telephony and the call manager or PBX. Not all ports in this range will be used simultaneously; per the SIP standard, actual ports are negotiated during call setup and are used only for the duration of a call. |