UC Series User Manual
110
OpenVox Communication Co. , LTD.
URL: www.openvox.cn
IP Configuration
Indicate whether the box has a public IP or requires NAT
settings. Automatic configuration of what is often put in
sip_nat.conf
External IP
External Static IP or FQDN as seen on the WAN side of
the router. (asterisk: externip)
Local Networks
Local network settings (Asterisk: localnet) in the form of
ip/mask such as 192.168.1.0/255.255.255.0. For
networks with more 1 lan subnets, use the Add Local
Network Field button for more fields. Blank fields will
be removed upon submitting.
Figure 2-2-47 MEDIA & RTP Settings
Table 2-2-38 Instruction of MEDIA & RTP Settings
Options
Definition
Reinvite Behavior
Asterisk: canreinvite. yes: standard reinvites; no: never; nonat: An additional option is to
allow media path redirection (reinvite) but only when the peer where the media is being sent
is known to not be behind a NAT (as the RTP core can determine it based on the apparent IP
address the media arrives from; update: use UPDATE for media path redirection, instead of
INVITE. (yes = nonat)
RTP Timers
Asterisk: rtptimeout. Terminate call if rtptimeout seconds of no RTP or RTCP activity on the
audio channel when we're not on hold. This is to be able hangup a call in the case of phone
disappearing from net, like powerloss or someone tripping over cable.
Asterisk: rtpholdtimeout. Terminate if rtpholdtimeout seconds no rtp rtcp activity audio
channel when we're hold (must rtptimeout).
Asterisk: rtpkeepalive. Send keepalives stream keep nat open during periods where may
flowing (like hold).
RTP Port Ranges
Asterisk: rtpstart. The starting RTP port range.
Asterisk: rtpend. The ending RTP port range.
