GSM/3G User Manual
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Match
External Address
Locally
Only substitute the externaddr or externhost setting if it
matches.
Disallow all dynamic hosts from registering as any IP
address used for statically defined hosts. This helps avoid the
configuration error of allowing your users to register at the same
address as a SIP provider.
Externally Mapped
TCP Port
The externally mapped TCP port, when the gateway is behind a
static NAT or PAT.
The external hostname (and optional TCP port) of the NAT.
Hostname
Refresh Interval
How often to perform a hostname lookup. This can be useful
when your NAT device lets you choose the port mapping, but
the IP address is dynamic. Beware, you might suffer from
service disruption when the name server resolution fails.
Table 4-12 Definition of RTP Settings Options
Start of range of port numbers to be used for RTP
End of port numbers to be used for RTP
Paesing and Compatibility
Table 4-13 Instruction of Parsing and Compatibility
Strict RFC Interpretation
Check header tags, character conversion in URIs, and
multiline headers for strict SIP compatibility(default is yes)
Allows you to change the username filed in the SDP
owner string. This filed MUST NOT contain spaces.
The external hostname (and optional TCP port) of the
NAT.
The shrinkcallerid function removes '(', ' ', ')', non-trailing
'.', and '-' not in square brackets. For example, the caller