[asterisk-dev] 56k SS7 using TE122.

[Matthew Fredrickson]

Alex Balashov wrote:
> I think 56K A-links are DDS, not T1-based.

They can be T1 based as well.  In any case, this is a question that is 
being handled on the Asterisk-ss7 list, so please tune in there for more 
info :-)

Matthew Fredrickson
Digium, Inc.

> 
> Mark A Jenks wrote:
> 
>> (Hate to crosspost, but I don't know where I should be sending this....)
>>  
>> I am working on a project to try and get SS7 working against our Nortel 
>> DMS's.
>>  
>> First I tried to bring it up as a T1 to our DMS100, using B8zs or AMI 
>> and It would not connect at all.
>>  
>> So, then we moved it over to our DMS500, which can handle PRI's and we 
>> can now bring it up with B8zs now, but AMI does not work.
>>  
>> If we loop up the B8, everything looks great and it's happy talking to 
>> itself.
>>  
>> Here is the problem: Our SS7 can only handle 56k.
>>  
>> Is there a way to get the TE122 to connect via AMI(56k)?  I can't get it 
>> to connect at all, and even if we loop up the AMI.
>>  
>> Or maybe change the dchan to 56k? 
>>  
>> I'm not even trying to use asterisk yet, I was trying to use ss7linktest 
>> to verify it.  I shouldn't have to change anything in chan_dahdi yet, right?
>>  
>> I've tried dchan, ntp2, and hardhdlc(which doesn't even come up, and has 
>> a FXS/FXO message)
>>  
>> /etc/dahdi/system.config
>> #span=1,1,0,d4,ami
>> bchan=1-23
>> dchan=24
>> #mtp2=24
>> #hardhdlc=24
>> defaultzone=us
>>  
>> Thanks!
>> -Mark
>>  
>>  
>>
>>
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> 
>