NEC SV9100 Communication System
12 Quick Install Guide – UNIVERGE ST500 Mobile Client v1.0
ST500 NAPT Setup
Note1: If NAT is enabled, then SIP signalling port (Default 5070) assigned in Easy Edit > Applications > ST500 > ST500 Basic Settings >
Registrar/Proxy Port (“PRG 84-20-01”) MUST be forwarded from the router to VOIP IP Address assigned in Easy Edit > Applications > ST500
> ST500 IP Configuration (“PRG 10-12-09”).
Note2: If NAT is enabled, then RTP/RTCP port(s) assigned in Easy Edit > Applications > ST500 > ST500 VoIP Resource IP Addressing must
be forwarded from the router to the VOIPDB DSP IP Address assigned in Easy Edit > Applications > ST500 > ST500 VoIP Resource IP
Addressing (“PRG 84-26-01”).
Note3: Video calling is supported for remotely connected UNIVERGE ST500 Mobile Clients using NAT mode but requires the SV9100 IPLE
Video Streaming feature configured in order to bridge the video connection.
ST500 NAPT Exempt Networks
For locally connected IP terminals not connecting to the communication server using NAPT Mode, enter the
network address ranges of those devices in this table. This includes any network devices connecting over VPN
connections.
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