[Asterisk-Users] Asterisk with Ericsson MD110 PBX

[Petr Grussmann]

Working perfektly over E1 link
I have MD110 with 13 E1 link and 3 link is on asterisk over digium card



Christopher Lee wrote:

>I don't have any direct experience with the MD110's and Asterisk, but I
>would envisage the MD110 digital phones are very much a proprietary
>protocol, as with Nortel digital phones, you can't mix and match between
>different vendors.
>
>It may be possible to get Ericsson (as well as Nortel and others) digital
>phones working with Asterisk, I doubt via ADSI, more likely via Dialogic
>voice boards from Intel.
>
>I know after some digging through intel.com for info on their Dialogic voice
>boards I found some technical info on the signaling used for Nortel digital
>phones.
>
>To successfully get a Ericsson/Nortel/etc digital phone working with
>Asterisk you'd need to firstly purchase the Dialogic voice board(s), then
>write the drivers for the Dialogic board for Linux (or maybe they already
>exist, I haven't checked), then some more drivers/plug-ins to get the
>Dialogic and the vendor-specific digital phones working with Asterisk. 
>
>I imagine for the most part, depending on how many phones you have and
>budget, it really wouldn't be economically feasible - in the long run I
>think you'd find replacing the phones with SIP handsets and trying to sell
>off the old digital handsets to recoup some of the upgrade cost would be the
>way to go.
>
>Actually if memory serves, the main purpose of the Intel Dialogic boards is
>actually interfacing the PC (ie Asterisk or other software) to the digital
>ports of the proprietary PBX, rather than directly interfacing the PC to the
>proprietary digital phones. 
>
>So for instance if you wanted to smoothly transfer calls between the
>Asterisk SIP extensions and the Ericsson MD110 handsets with all the caller
>ID details, or perhaps run a fancy IVR or auto-attendant system accessible
>to the MD110 handsets via Asterisk then they'd be ideal. Otherwise you have
>to interface via other digital trunk methods or Analog extensions and may
>not get access to as many features as you can through the digital extension
>ports.
>
>Even if you can use the dialogic boards directly with the proprietary
>handsets, I can't see the solution really scaling anywhere near as well as
>the proprietary digital cards that plug into the MD110 PBX itself.  
>
>Of course it would be nice to see the Ericsson/Nortel phones recycled for
>use with Asterisk systems, but at this point in time I'm not sure how
>feasible this is.
>
>I do believe Nortel were working on (or perhaps have now released) a small
>black-box solution that plugs into the existing proprietary Meridian handset
>and then plugs into Ethernet to essentially turn the phone into a VoIP
>handset - not sure if it uses SIP protocol.
>
>If Ericsson have a black-box solution like this available, then it might be
>a feasible approach, depending on the cost per box and the existing network
>infrastructure, as ideally you'd have the black boxes powered over Ethernet
>so you can install UPS' in the communications cabinets to ensure the phones
>and network are available during power outages.
>
>  
>
>>-----Original Message-----
>>From: asterisk-users-admin at lists.digium.com [mailto:asterisk-users-
>>admin at lists.digium.com] On Behalf Of Julian Pawlowski
>>Sent: Wednesday, 2 June 2004 7:28 PM
>>To: asterisk-users at lists.digium.com
>>Subject: [Asterisk-Users] Asterisk with Ericsson MD110 PBX
>>
>>I was just wondering if someone has experiences to use Asterisk in an
>>existing Ericsson MD110 environment. Particulary I'd like to know if it is
>>possible to use the MD110's system phones directly connected to Asterisk.
>>
>>I'm not very familiar with it but would it be possible to use ADSI with
>>these phones? Are they more like analog or more like digital phones or is
>>the protocol even more proprietary?
>>
>>
>>Regards
>>Julian Pawlowski
>>
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