Version 7.2  367  Mediant 1000B Gateway & E-SBC 
 
User's Manual   17. Control Network 
Parameter  Description 
  When the parameter is set to [1] and the INVITE sent to the Proxy 
fails, the device re-routes the call according to the Standard mode 
[0]. 
  When the parameter is set to [2] and the INVITE fails, the device 
re-routes the call according to the Standard mode [0]. If DNS 
resolution fails, the device attempts to route the call to the Proxy. If 
routing to the Proxy also fails, the Redirect / Transfer request is 
rejected. 
  When the parameter is set to [2], the XferPrefix parameter can be 
used to define different routing rules for redirected calls. 
  The parameter is ignored if the parameter AlwaysSendToProxy is 
set to 1. 
Always Use Route Table 
always-use-route-table 
[IPGroup_AlwaysUseRouteT
able] 
Defines the Request-URI host name in outgoing INVITE messages. 
  [0] No (default). 
  [1] Yes = The device uses the IP address (or domain name) 
defined in the Tel-to-IP Routing table (see Configuring Tel-to-IP 
Routing Rules on page 511) as the Request-URI host name in 
outgoing INVITE messages, instead of the value configured in the 
'SIP Group Name' field. 
Note: The parameter is applicable only to Server-type IP Groups. 
GW Group Status 
GW Group Registered IP 
Address 
(Read-only field) Displays the IP address of the IP Group entity 
(gateway) if registered with the device; otherwise, the field is blank. 
Note: The field is applicable only to Gateway-type IP Groups (i.e., the 
'Type' parameter is configured to Gateway). 
GW Group Registered 
Status 
(Read-only field) Displays whether the IP Group entity (gateway) is 
registered with the device ("Registered" or "Not Registered"). 
Note: The field is applicable only to Gateway-type IP Groups (i.e., the 
'Type' parameter is configured to Gateway). 
 
 
17.5  Configuring Proxy Sets 
The Proxy Sets table lets you configure up to 102 Proxy Sets. A Proxy Set defines the 
address and transport type (e.g., UDP or TCP) of a SIP server (e.g., SIP proxy and SIP 
registrar server). The Proxy Set represents the destination (address) of the IP Group 
configuration entity. Each Proxy Set can be configured with up to 10 addresses configured 
as an IP address and/or DNS host name (FQDN), enabling you to implement load 
balancing and redundancy (Proxy Hot-Swap feature) between multiple servers. Each Proxy 
Set can be assigned a specific SSL/TLS certificate the (TLS Context), enabling you to use 
different TLS certificates per SIP entity (IP Group). In addition, each Proxy Set must be 
assigned a SIP Interface (and SRD), which determines, amongst others, the device's local 
network interface through which communication with the Proxy Set is done. 
You can enable the device's keep-alive feature per Proxy Set, which determines whether 
proxies (addresses) configured for the Proxy Set are online or offline. If offline, the device 
will not route the call to the specific proxy. You can configure the device to send either SIP 
OPTIONS or REGISTER messages for the keep-alive. The keep-alive feature is required 
when using the proxy load-balancing or redundancy feature. For load-balancing, the device 
performs keep-alive on all proxies. For Parking-type redundancy, the device  performs