Re: [Asterisk-Users] Connecting an ISDN (1 BRI) DECT multi phone base. NO ONE ???

2004-02-27 Thread Frederic Olivie 





  - Original Message - 
  From: 
  Frederic 
  Olivie 
  To: [EMAIL PROTECTED] 
  
  Sent: Thursday, February 26, 2004 2:04 
  PM
  Subject: [Asterisk-Users] Connecting an 
  ISDN DECT phone base
  
  Hi,
  
  I own a Siemens 3070 DECT system.
  
  It's a simple DECT base which allows the 
  connection of a few DECT phones. It's a very basic PBX.
  
  It's connected to the public network using an 
  ISDN bri (2B + D) plug. According to the doc, it can also be connected to a 
  PBX.
  
  Is there a way to connect this to Asterisk ? I 
  have no good knowledge about ISDN, so I don't know if it's possible at all. I 
  suppose there must be some kind of interexchange protocol in between the base 
  and the PBX (Asterisk in this case) that handles call transfers among 
  all.
  
  Is there an ISDN hardware card that would handle 
  such a connection ?
  
  If not, is there some kind of PCI DECT card that 
  could handle multiple terminals through Asterisk ?
  
  Thanks a lot in advance for your 
  answers.
  
  


   
   
  Frdric Olivi (Alf) @ 
Club-Internet 
Don't SCREAM, It hurts my 
eyes!Ne CRIEZ pas, a fait mal aux yeux 
!Alf, March 2001 
  
tux4.png

Re: [Asterisk-Users] Connecting an ISDN (1 BRI) DECT multi phone base. NO ONE ???

2004-02-27 Thread Jean-Marc V. Liotier 
On Fri, 2004-02-27 at 11:28, Frederic Olivie wrote:
  
 I own a Siemens 3070 DECT system. It's a simple DECT base
 which allows the connection of a few DECT phones. It's a very
 basic PBX. It's connected to the public network using an ISDN
 bri (2B + D) plug. According to the doc, it can also be
 connected to a PBX.
  
 Is there a way to connect this to Asterisk ? [..] Is there an
 ISDN hardware card that would handle such a connection ?

In order to connect an user device, you need an ISDN adapter that
supports NT mode. From http://www.isdn4linux.de/faq/i4lfaq-29.html :

When multiple devices are connected to the ISDN connection, then all
user device behave as slaves, where the network terminator (NT) behaves
as master and synchronizes the communication on the S0 bus. The special
behavior of the network terminator is called NT mode. User devices are
normally not capable of running in NT mode. As a result, user devices
can not communicate with each other even when they are connected via a
crossed cable. Only some special ISDN cards (HFC chipset) are capable of
running in NT mode, and can directly communicate with other ISDN user
devices via a crossed cable.

The QuadBRI from Junghanns does it and I'm about to get one, both to
connect to the public ISDN and to connect ISDN DECT base stations :

http://www.junghanns.net/asterisk/page17.html

The Eicon Diva server cards do it too and they seem to be an industry
reference, but they are twice as expensive as the Junghanns QuadBRI for
about the same functions. As soon as I get my QuadBRI, I'll report my
experience with it.



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