[asterisk-users] Learn some terminalogy before mountingthistask.

[Ryan Amos]

The 7914 only works under SCCP; the SIP firmware does not support it at
all (the expansion panel won't even power on fully.) The SCCP channel
driver under Asterisk doesn't really support the 7914 very well,
currently it will only show onhook/offhook state (though there has been
much discussion recently about changing this.) If you want to do this
with SIP then you're better off with something like the grandstream
mentioned, or just use the Flash Operator Panel (IMO it gives you more
flexibility at a much lower cost.)
 
I have personally found "receptionist phone" functionality handled much
better with FOP. I have a 7914 and its functionality (and usefulness) is
very limited under Asterisk.

________________________________

From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of James R.
Stevens
Sent: Monday, August 06, 2007 10:41 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [asterisk-users] Learn some terminalogy before
mountingthistask.



Thank you for your reply as it is exactly what we would need. Sorry I
didn't find it myself. I do have a question about configuration within
Asterisk. 

 

I'm reading the PDF on the Cisco Expansion module and it says 'When used
as a DN key buttons are illuminated ...'

 

Is that what we are doing within Asterisk or Trixbox when we configure
an extension?  (A Directory Number??)

 

From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of James
FitzGibbon
Sent: Monday, August 06, 2007 7:37 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [asterisk-users] Learn some terminalogy before
mountingthistask.

 

On 8/5/07, James R. Stevens <jstevens at athensdistributing.com> wrote:

	In the design of an Asterisk system using Cisco 7900 series SIP
phones
	we are struggling with giving the reception folks (3) hardware
that can
	tell them the status of everyone in the office (10 or so) (On
the phone, 
	out of office etc) Something that would register each of the
extensions
	we choose and give status of that ext.
	
	What hardware (Phone or other) could we give the receptionist to
do
	this?


You're probably looking for something like this:

http://www.cisco.com/en/US/products/hw/phones/ps379/products_data_sheet0
9186a008008883d.html 

I have no experience integrating this specific piece of hardware with
Asterisk, but I've done what you're trying to do with the Grandstream
equivalent for our front reception:

http://www.grandstream.com/gxp2000.html

and

http://www.grandstream.com/gxp2000ext.html

As I understand it, so long as the device can do a SIP SUBSCRIBE for
each extension you want to monitor and you configure hints in your
Asterisk dialplan for those extensions, it should work.  You may need to
set 'subscribecontext' (in sip.conf) for the phone that will be watching
the extensions unless your hints are in the same context as the phone
uses for outbound dialing.

Of course, what the device does with the various payloads contained in
the SIP NOTIFY messages is going to be different for each phone.  On the
Grandstream I can see 'not in use' (solid green) and 'ringing' (flashing
red) distinctly, but 'unavailable' and 'in use' are both mapped to a
solid red, which makes it somewhat useless for transiently connected
user agents like softphones. 


Hopefully someone with experience will speak up and confirm that the
7900 series does interop properly with Asterisk for SUBSCRIBE and
NOTIFY.

If that doesn't work, you could always go with a software solution, like
the Flash Operator Panel.  voip-info has a list (look at the "Operator"
section on the page): http://www.voip-info.org/wiki/view/Asterisk+GUI

-- 
j. 


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