[VoIP] Echo Cans vs Asterisk

Steph Kerman stfkerman at jps.net
Sat Oct 7 12:25:40 CDT 2006


Hear is a list of the echo canceller practices I have:

    255A Mounting Assembly       
    255D Mounting Assembly       
    256 8-Position Mounting Assemblies       
    256TM Twin Mounting Assembly       
    257 Mounting Assembly
    258 Mounting Assembly 

    _2551 and 2551A *T1* Echo Canceller Modules_      
    _2551C *T1* Echo Canceller Module_      
    2551E *E1* Echo Canceller Module        
    2561/A- *E1* Echo Canceller       
    2561C *E1* Echo Canceller       
    2561/A/C *E1* Echo Canceller       
    _257X *T1* Echo Canceller_          
    2581 and 2582 *E1* Echo Canceller Modules    
 
    2557 T1 Test Access Module    
    2563A/B/C Signaling Subassemblies       
    2564H 64ms Delay Expansion Subassembly            
    255/A Alarm and Access Module
 
On closer reading, the 2561 and 2581 appear to be E1-only versions.  For 
the moment I will make only the three T1 versions of the 2551 and 257X 
available.

Steph Kerman wrote:
> Greg,
>
> "May be good enough"? 
>
> I'll upload them and provide links to the specific interested parties.
>
> Steph
>
> Greg Blakely wrote:
>   
>> Steph,
>>
>> ay be good enough.  The web page at
>> http://www.voip-info.org/wiki/view/Tellabs+Hardware+Echo+Cancellers
>> claims that the 253X and 257X are basically the same cards, with only
>> the thickness of the board and a few added features being included.
>>
>> So, if you can provide a manual for either the 2551 or the 2561, it may
>> help.
>>
>> Thanks,
>>
>> Greg
>>
>>   
>>     
>>> -----Original Message-----
>>> From: voip-bounces at ckts.info [mailto:voip-bounces at ckts.info] On Behalf
>>>     
>>>       
>> Of
>>   
>>     
>>> Steph Kerman
>>> Sent: Friday, October 06, 2006 7:19 AM
>>> To: Voice Over IP Tandem for Analog Switches
>>> Subject: Re: [VoIP] Echo Cans vs Asterisk
>>>
>>> 2531?  No.  2551 and 2561?  Yes.
>>>
>>> SK
>>>
>>> John Novack wrote:
>>>     
>>>       
>>>> Funny you should mention that, but I just bought off of eBay some
>>>> 2531's, cheap, so if you have any docs on them I would cover any
>>>>       
>>>>         
>> copy
>>   
>>     
>>>> costs. I only have the cards, so I will need to look for some sort
>>>>       
>>>>         
>> of
>>   
>>     
>>> mount
>>>     
>>>       
>> _______________________________________________
>> VoIP mailing list
>> VoIP at ckts.info
>> http://lists.ckts.info/mailman/listinfo/voip
>> Project Web Page: http://www.ckts.info/
>>
>>
>>   
>>     
>
>   

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Thanks.




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