[Freeswitch-users] Terminating calls prior to answer using api

[Steven Ayre]

The NORMAL_CLEARING ISDN clearing cause (16) has no mapping to any SIP code
for example, it's a code you normally would only see a) when the caller
hangs up at any time (regardless of answered or not) or b) when call has
been answered *then* callee hangs up.

-Steve




On 11 February 2013 17:40, Steven Ayre <steveayre at gmail.com> wrote:

> You either answer a call with 200, redirect with 3xx, or give an error 4xx
> 5xx or 6xx... basically without answering your only option is to return an
> error.
>
> The specific error code can show a varying number of levels of 'error'
> though. Some might be a perfectly valid result (eg 486 User Busy) while
> other's imply a more serious error (eg 500 Server Internal Error). But
> there's not really one for a successful unanswered call.
>
> How your phone behaves on the various errors is really up to the SIP
> client though. A generic unable to connect message doesn't sound very
> useful, I'd expect different error tones depending on the response code.
>
> -Steve
>
>
>
> On 11 February 2013 15:30, Gary Foreman <gaz.foreman at gmail.com> wrote:
>
>> Hi,
>>
>> I'm having an issue gracefully terminating calls prior to them being
>> answered.
>>
>> When I issue the uuid_kill command prior to the call being answered my
>> sip client gives an error "unable to connect" with an error tone.
>>
>> Is it possible to cancel the client dial without causing an error? Maybe
>> using a sip notify message or something?
>>
>> I can't seem to find a list of valid sip notify messages anywhere.
>>
>> Thanks
>>
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