The Vоice Gateway architectural diagram

The diagram shows the environment variables and parameters which are used in the Voice Gateway configuration.

_ENV_or_PARAMS	_Port	_Direction	_Note
_{EXT_PORT}	_{5969 TCP/UDP}	_IN	_{The SIP service for cloud intercoms (Sputnik).}
_{INT_PORT1}	_{5060 TCP/UDP}	_IN	_{The SIP service for standalone intercoms (Beward and Intersvyaz).}
_{WEBRTC_PORT}	_{7443 TCP}	_IN/OUT	_{WebRTC to handle connections from mobile applications.}
_{RTP_PORT_MIN} _{RTP_PORT_MAX}	20000 - 25000 UDP	_IN/OUT	_{RTP media.}