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Admin Guide > Configuration > Managing ICE Gateway > Running an ICE Telephony Gateway using Non-TLS/SRTP > ICE Telephony Calls in SIP Trunk mode
ICE Telephony Calls in SIP Trunk mode
This section provides configuration and setup instructions for ICE telephony calling over a SIP Trunk. The SIP trunk connects your on-premises phone system (PBX) to the ICE Server which can then utilize the connection to broker calls through the PBX to the PTSN.