3Com VCX V7122 SIP User Manual page 52

Using SIP Gateway Features
Table 15
Feature Parameter
No Proxy IsProxyUsed
Use routing table Define routing table using:
When a proxy is not used, you must define the IP routing table to enable the
VCX V7122/SIP Gateway to find the destination IP address according to the
received dial number. The routing table is defined in the INI file, using PREFIX
parameters. Up to 20 Prefix definitions can be provided.
PREFIX = *,<IPaddress> definition defines the destination IP address for all
incoming (from PSTN) calls, that did not mach the PREFIX = definitions. The
Gateway first searches for the Phone table to find a destination IP address, then
it looks for a Prefix parameter, and later for Prefix =*,<IP address> parameter.
The Prefix=*,<IP address> defines destination IP address for any other phone
number.
Choose Coder CoderName
Several Coders CoderName
In this mode, several codecs are sent in SDP message. On receiving the remote
response (200 OK) with its SDP, a process of matching coders is done between
the local set of coders (from the INI file) and the remote set. The local coders
are the preferred ones, and if the first local coder is included in the remote SDP
response, then it is selected, otherwise next local coder is tested for match.
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IP<phone number> = <IP
address> list
PREFIX = prefix, <IP address> list
PREFIX = *, <IP address>
General
General
3Com VCX V7122/SIP VoIP Gateway User Manual
Sheet of Excel Value
Utility
SIPgw 0
Phone or/and Phone
Prefix Tables numbers,
Prefixes, and
IPs
Preferred coder name
List of coders