IP Phone 202 User Manual
User ID is Phone
Number
If the IPPH 202 has an assigned PSTN telephone number, then this field should be set to
“Yes”. Otherwise, set it to “No”. If “Yes” is set, a “user=phone” parameter will be
attached to the “From” header in SIP request message to SIP server
SIP Registration
This parameter controls whether the IPPH 202 needs to send REGISTER messages to
the proxy server. The default setting is “Yes”.
Unregister on
Reboot
Default is “No.” If set to “Yes”, then the SIP user will be unregistered on reboot.
Register Expiration
This parameter allows the user to specify the time frequency (in minutes) the
IPPH 202 refreshes its registration with the specified gatekeeper/SIP server. The default
interval is 60 minutes (or 1 hour). The maximum interval is 65535
minutes (about 45 days).
Local SIP Port
This parameter defines the local SIP port the IPPH 202 listens and transmits signals.
The default value is
5060
.
Local RTP port
This parameter defines the local RTP-RTCP port pair the IPPH 202 will
listen and transmit signals. It is the base RTP port for channel 0. When configured,
channel 0 will use this port _value for RTP and the por1 for its RTCP; channel
1 will use por2 for RTP and por3 for its RTCP. The default value is
5004.
Use Random Port
When set to “Yes”, this parameter will force random generation of both the local
SIP and RTP ports.
This is usually necessary when multiple IPPH 202
are behind the same NAT.
NAT Traversal
This parameter defines whether the IPPH 202 NAT traversal mechanism will be
activated or not. If activated (by choosing “Yes”) and a
STUN server address
is also
specified, then the IPPH 202 will automatically follow the STUN client specifications.
Under this mode, the embedded STUN client inside the IPPH 202 will attempt to detect
if there is a (and type of) firewall/NAT it is sitting behind through communication with
the specified STUN server. If the detected NAT is a Full Cone, Restricted Cone, or a
Port- Restricted Cone, the IPPH 202 will attempt to use its mapped public IP address
and port in all of its SIP and SDP messages. If the NAT Traversal field is set to “Yes”
with no specified STUN server, the IPPH 202 will periodically (every 20 seconds) send
a blank UDP packet (with no payload data) to the SIP server to keep the “hole” on the
NAT open.
Keep Connected
Interval
This parameter specifies how often the IPPH 202 sends a blank UDP
packet to the SIP server in order to keep the “hole” on the NAT open.
Use NAT IP:
NAT IP address used in SIP/SDP message. Default is blank.
Proxy-Require SIP
Extension
to
notify SIP server that the unit is behind the NAT/Firewall.
Send DTMF
This parameter controls how DTMF events are transmitted. There are 3 ways:
In-Audio which means DTMF is combined in audio signal (not very reliable
Copyright © 2003 Tiger NetCom Corporation
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