[asterisk-users] Personal queue with one agent: add calls to extension

[Roland]

To answer my own question: I stumpled upon the RetryDial function. This is
exactly what I needed! But when the function played back the audio, I
couldn't hear it. I needed to open the channel, which the Dial command
would normally do automatically. So I came up with this dialplan:

exten => 120,hint,SIP/Ton_Bl
exten => 120,1,Verbose(2, Incoming call for Ton)
  same => n,Dial(SIP/Ton_Bl,,tT)
  same => n,Verbose(2, Dial status ${DIALSTATUS})
  same => n,GotoIf($[$[${DIALSTATUS}=BUSY] |
$[${DIALSTATUS}=CHANUNAVAIL]]?:doHangup)
  same => n,Answer
  same => n,Playback(wait-moment)
  same => n,RetryDial(beep-7,10,10,SIP/Ton_Bl,60,tT)
  same => n(doHangup),Hangup

I had to test for CHANUNAVAIL as well, because when I hit a call-limit, the
returned status is not busy, but chanunavail. I needed to call-limit my
dect phones, because they share the base stastion. The base station can
only handle 3 concurrent calls, so I didn't want to occupy an extra line
with a caller just 'waiting'. This waiting could be done in Asterisk with
this solution. I added 'call-limit=1' for my dect phones in sip.conf.

Hope this is helpfull for others as well. Any other thoughts are welcome!


On Fri, Apr 13, 2012 at 10:36 AM, Roland <asterisk at rolandow.com> wrote:

> Hi,
>
> What would be the easiest way to give a SIP account his own private queue,
> so calls can be added while this account is busy?
>
> While implementing our new Asterisk based telephone system, the
> receptionist came with the 'need' to add a call in the queue for an
> extension. So if the boss on extension 100 is on the phone, she could still
> transfer the caller to this extension, and it will be queued after the
> call. The boss would hear a beep, indicating that somebody else is waiting.
> This is how our old analog PBX seems to work. After waiting a while, the
> caller would return to reception if the boss wouldn't answer (or is still
> talking).
>
> I think I can accomplish this setting up a Queue with a timeout. After the
> timeout, the user would be returned back to reception.
>
> But of course when I asked: who would you like to have a queue, the reply
> was: everybody!
>
> I think I am not all to happy with giving everybody his own personal
> queue. Doesn't really make sense, does it?
>
> Especially for our wireless DECT phones this is a problem, because I have
> a few handsets on a base station with their own extension number. The dect
> system can only handle 3 concurrent calls. I now have configured every
> handset to have his own SIP account. I could give every handset two sip
> accounts (or two lines, somehow), but then the line being in the queue,
> would congest the base station. Other dect system I have seen can handle 4
> concurrent calls. I am afraid more base stations will cause interference on
> the signal.
>
> So I think I should solve this with Asterisk. Any suggestions about
> queueing call to a extension (or SIP account actually) without having to
> configure a 'private' queue for each sip account?
>
> Thanks in advance!
>
> Kind regards,
> Roland.
>
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