User's Manual  1112  Document #: LTRT-10632 
 
  Mediant 800B Gateway & E-SBC 
Parameter  Description 
settings > use-gw-name-for-opt 
[UseGatewayNameForOptions] 
OPTIONS request as a keep-alive message with its primary and 
redundant SIP proxy servers (i.e., the EnableProxyKeepAlive 
parameter is set to 1). 
  [0] No = (Default) Device's IP address is used in keep-alive 
OPTIONS messages. 
  [1] Yes = Device's "gateway name" is used in keep-alive 
OPTIONS messages. 
  [2] Server = Device's IP address is used in the From and To 
headers in keep-alive OPTIONS messages. 
User Name 
configure voip > sip-definition 
proxy-and-registration > user-
name-4-auth 
[UserName] 
Defines the username for registration and Basic/Digest 
authentication with a Proxy/Registrar server. 
By default, no value is defined. 
Note: 
  The parameter is applicable only to the Gateway application. 
  The parameter is applicable only if single device registration is 
used (i.e., the parameter AuthenticationMode is set to 
authentication per gateway). 
  Analog interfaces: Instead of configuring the parameter, the 
Authentication table can be used (see Authentication on page 
633). 
Password 
configure voip > sip-definition 
proxy-and-registration > 
password-4-auth 
[Password] 
Defines the password for Basic/Digest authentication with a 
Proxy/Registrar server. A single password is used for all device 
ports. 
The default is 'Default_Passwd'. 
Note: 
Analog interfaces: Instead of configuring the parameter, the 
Authentication table can be used (see Authentication on page 
633). 
Cnonce 
configure voip > sip-definition 
proxy-and-registration > cnonce-
4-auth 
[Cnonce] 
Defines the Cnonce string used by the SIP server and client to 
provide mutual authentication.  
The value is free format, i.e., 'Cnonce = 0a4f113b'. The default is 
'Default_Cnonce'. 
Challenge Caching Mode 
configure voip > sip-
definition settings > 
challenge-caching 
[SIPChallengeCachingMode] 
Enables local caching of SIP message authorization challenges 
from Proxy servers.  
The device sends the first request to the Proxy without 
authorization. The Proxy sends a 401/407 response with a 
challenge for credentials. The device saves (caches) the 
response for further uses. The device sends a new request with 
the appropriate credentials. Subsequent requests to the Proxy 
are automatically 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. One of the benefits of the feature is that it may reduce 
the number of SIP messages transmitted through the network. 
  [0] None = (Default) 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.  
  [1] INVITE Only = Challenges issued for INVITE requests are 
cached. This prevents a mixture of REGISTER and INVITE 
authorizations.