UCM6200 Series User Manual 
If set to "yes", the connection will be terminated if ACK for the NEW message is 
not received within 2000ms. Users could also specify number (in milliseconds) in 
addition to "yes" and "no". The default setting is "yes". 
If enabled, authentication traffic in debugging will not show. The default setting is 
"No".   
Configure codec negotiation priority. The default setting is "Reqonly". 
  Caller 
Consider the callers preferred order ahead of the host's. 
  Host 
Consider the host's preferred order ahead of the caller's. 
  Disabled 
Disable the consideration of codec preference all together. 
  Reqonly 
This is almost the same as "Disabled", except when the requested format is 
not  available.  The  call  will  only  be  accepted  if  the  requested  format  is 
available.   
Configure ToS bit for preferred IP routing. 
Configure the frequency of trunk frames (in milliseconds). The default setting is 
20. 
If enabled, time stamps will be attached to trunk  frames. The default setting is 
"No". 
 
IAX Settings/Static Defense 
 
Table 89: IAX Settings/Static Defense 
Enter  a  single  IP  address  (e.g.,  11.11.11.11)  or  a  range  of  IP  addresses 
(11.11.11.11/22.22.22.22) for which call token validation is not required. 
Configure the maximum number of calls allowed for a single IP address. 
Max Unvalidated Call 
Numbers 
Configure the maximum number of unvalidated calls for all IP addresses. 
Configure to limit the number of calls for a give IP address of IP range. 
Enter  the  IP  address  (11.11.11.11)  or  a  range  of  IP  addresses 
(11.11.11.11/22.22.22.22) to be considered for call number limits.