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PORTTCP/UCPPURPOSECHANGING PORTSECURITYNOTES
5060UDPchan_PJSIP SignalingCan change this port inside the PBX Admin GUI SIP Settings module.Not recommended to open this up to untrusted networks.Standard Port used for chan_PJSIP Signalling.
5061 

chan_PJSIP
Secure Signaling

Can change this port inside the PBX Admin GUI SIP Settings module.Not recommended to open this up to untrusted networks.Secure Port used for chan_PJSIP Signalling.
5160UDPchan_SIP SignalingCan change this port inside the PBX Admin GUI SIP Settings module.Not recommended to open this up to untrusted networks.Standard Port used for chan_SIP Signalling.
5161 chan_SIP
Secure Signaling
Can change this port inside the PBX Admin GUI SIP Settings module.Not recommended to open this up to untrusted networks.Secure Port used for chan_SIP Signalling.
10000-20000UDPRTP for SIPCan change this port inside the PBX Admin GUI SIP Settings module.Safe to open to the outside world and is required by most SIP Carriers as your RTP traffic can come from anywhere.Used for the actual voice portion of a SIP Call.
4569UDPIAXCan change this port inside the PBX Admin GUI IAX Settings module.Not recommended to open this up to untrusted networks.Used for IAX protocol and trunking
4000-4999UDPFAX UDPTLNot configurable in the GUI, on by editing custom conf file.
Used for T38 fax media

PBX User Control Panel (UCP)

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