On 29/08/13 14:42, Olivier wrote:
Thanks for your very helpful reply.
1.My system prints out:
CLI> core show application Hangup
-= Info about application 'Hangup' =-
[Synopsis]
Hang up the calling channel.
[Description]
This application will hang up the calling channel.
[Syntax]
Hangup([causecode])
[Arguments]
causecode
If a <causecode> is given the channel's hangup cause will be set
to the given value.
[See Also]
Answer(), Busy(), Congestion()
How could we improve this Arguments section so that other Asterisk
admins can find available <causecode> values ?
Have a look in the source code in channels/chan_sip.c and you will see :-
const char *hangup_cause2sip(int cause)
{
switch (cause) {
case AST_CAUSE_UNALLOCATED: /* 1 */
case AST_CAUSE_NO_ROUTE_DESTINATION: /* 3 IAX2:
Can't find extension in context */
case AST_CAUSE_NO_ROUTE_TRANSIT_NET: /* 2 */
return "404 Not Found";
case AST_CAUSE_CONGESTION: /* 34 */
case AST_CAUSE_SWITCH_CONGESTION: /* 42 */
return "503 Service Unavailable";
case AST_CAUSE_NO_USER_RESPONSE: /* 18 */
return "408 Request Timeout";
case AST_CAUSE_NO_ANSWER: /* 19 */
case AST_CAUSE_UNREGISTERED: /* 20 */
return "480 Temporarily unavailable";
case AST_CAUSE_CALL_REJECTED: /* 21 */
return "403 Forbidden";
case AST_CAUSE_NUMBER_CHANGED: /* 22 */
return "410 Gone";
case AST_CAUSE_NORMAL_UNSPECIFIED: /* 31 */
return "480 Temporarily unavailable";
case AST_CAUSE_INVALID_NUMBER_FORMAT:
return "484 Address incomplete";
case AST_CAUSE_USER_BUSY:
return "486 Busy here";
case AST_CAUSE_FAILURE:
return "500 Server internal failure";
case AST_CAUSE_FACILITY_REJECTED: /* 29 */
return "501 Not Implemented";
case AST_CAUSE_CHAN_NOT_IMPLEMENTED:
return "503 Service Unavailable";
/* Used in chan_iax2 */
case AST_CAUSE_DESTINATION_OUT_OF_ORDER:
return "502 Bad Gateway";
case AST_CAUSE_BEARERCAPABILITY_NOTAVAIL: /*
Can't find codec to connect to host */
return "488 Not Acceptable Here";
case AST_CAUSE_INTERWORKING: /* Unspecified
Interworking issues */
return "500 Network error";
case AST_CAUSE_NOTDEFINED:
default:
ast_debug(1, "AST hangup cause %d (no match
found in SIP)\n", cause);
return NULL;
}
For any given hangup cause you can change the sip response there. For a
list of the hangup numbers and the internal variable name look in
include/asterisk/causes.h
So if you change chan_sip.c and add the following just before the
'AST_CAUSE_NOTDEFINED' line and recompile and reinstall you should in
theory be able to do a Hangup(44) to achieve what you want.
case AST_CAUSE_REQUESTED_CHAN_UNAVAIL: /* 44 */
return "480 Temporarily Unavailable (Call limit)";
Thats only in theory. I havent tested it myself and I am not an asterisk
developer.
--
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