[asterisk-users] ISDN30 and digital phones

Steve Langstaff steve.langstaff at citel.com
Wed Sep 27 03:51:16 MST 2006

You can interface between the digital phones and an Asterisk machine
using a Citel SIP Handset Gateway from www.citel.com. The sales
department on +44 (0)115 940 5444 will be able to give you some pricing.

-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Mike
Sent: 27 September 2006 10:56
To: asterisk-users at lists.digium.com
Subject: [asterisk-users] ISDN30 and digital phones


At our other site in the UK we currently have a rather old Nortel BCM
(4000 I think), with an ISDN30 feed and 15-16 or so digital extensions
(Meridian of some description).
The ISDN comes in as HSDSL over a twisted copper pair to a small BT box,
then ethernet to the BCM.

We'd like to do, at least, inter-office VoIP calls. However I believe
making trunks between asterisk and BCM isn't the easiest thing in the
world, and my brief exploration of the BCM configuration bears that out.
Plus we don't have any licences for VoIP.

If I were to recommend replacing the BCM with an asterisk machine, what
special hardware/cards would I need? (I so don't understand how US line
designations fit in with UK style lines) I'm open to replacing phones if
the kit to interface with digital phones costs more than buying SIP
phones, every desk already has at least 2 cat5e points.


Mike Williams
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