Version 5.2 95 September 2007
SIP User's Manual 5. Web-based Management
Table 5-9: Proxy & Registration Parameters
Parameter Description
Number of RTX Before
Hot-Swap
[HotSwapRtx]
Number of retransmitted INVITE/REGISTER messages before call is routed
(hot swap) to another Proxy/Registrar.
The valid range is 1 to 30. The default value is 3.
Note: This parameter is also used for alternative routing using the Tel to IP
Routing table. If a domain name in the routing table is resolved into two IP
addresses, and if there is no response for HotSwapRtx retransmissions to
the INVITE message that is sent to the first IP address, the gateway
immediately initiates a call to the second IP address.
User Name
[UserName]
This parameter is used for Registration and for Basic/Digest authentication
process with a Proxy / Registrar.
The parameter doesn't have a default value (empty string).
Note: Applicable only if single gateway registration is used (Authentication
Mode = Authentication Per gateway).
Password
[Password]
The password used for Basic/Digest authentication process with a Proxy /
Registrar. Single password is used for all gateway ports.
The default is 'Default_Passwd'.
Cnonce
[Cnonce]
String used by the SIP server and client to provide mutual authentication.
(Free format i.e., 'Cnonce = 0a4f113b'). The default is 'Default_Cnonce'.
Authentication Mode
[AuthenticationMode]
 [0] Per Endpoint = Registration and Authentication separately for each B-
channel.
 [1] Per Gateway = Single Registration and Authentication for the entire
gateway (default).
Single Registration and Authentication (Authentication Mode = 1) is usually
defined for and digital modules.
Challenge Caching
Mode
[SIPChallengeCachin
gMode]
Determines the mode used for Challenge Caching. Challenge Caching is
used to reduce the number of SIP messages transmitted through the
network. The first request to the Proxy is sent without authorization. The
Proxy sends a 401/407 response with a challenge. This response is saved
for further uses. A new request is resent with the appropriate credentials.
Subsequent requests to the Proxy are sent with credentials (calculated from
the saved challenge). If the Proxy doesn't accept the new request and sends
another challenge, the old challenge is replaced with the new one.
Valid options include:
 [0] None = Challenges are not cached. Every new request is sent without
preliminary authorization. If the request is challenged, a new request with
authorization data is sent (default)
 [1] INVITE Only = Challenges are issued for INVITE requests are
cached. This prevents a mixture of REGISTER and INVITE
authorizations.
 [2] Full = Cache all challenges from the proxies.
Note: Challenge Caching is used with all proxies and not only with the active
one.
To Next Page
Loading...
Need help?
General