[asterisk-users] E4 Superframe E&M?

[Richard Lyman]

Steve Totaro wrote:
> Richard Lyman wrote:
>   
>> Steve Totaro wrote:
>>     
>>> I need to create a couple of tie lines between a legacy system and an 
>>> Asterisk system.  I was told that the tie lines are E4 Superframe E&M.
>>>
>>> I have done E&M wink but have no idea about E4 Superframe E&M and Google 
>>> is not helping me here.
>>>
>>> Does anyone know about this type of signaling and if Asterisk can handle it?
>>>
>>> Thanks,
>>> Steve
>>>
>>>   
>>>       
>> use this
>>
>> zaptel.conf
>>
>> span=1,1,0,d4,ami
>> e&m=1-24      ; 1-32 for E4
>>
>>
>> zapata.conf
>>
>> signalling=em
>> channel => 1-24   ; 1-32 for E4
>>
>>     
>
> Thanks to everyone who has responded so quickly to my question.
>
> To my way of thinking, it would be better to have the legacy tie-line 
> reconfigured to use esf if possible.
>
> Is D4 (superframe) well supported in Asterisk, are there less features? 
>   If it is virtually the same, then I guess I will just setup Asterisk 
> to use it rather than messing with the legacy system.
>
> Thanks,
> Steve
>
>
>   
i need sleep that is for sure.

the 1-32 for E4 stuff was meant to be for E1 stuff you can just increase 
the channel count. (1-31)

if possible, yes, because you get the added error information with ESF.

using d4,ami with em signalling has worked for years for us (on 1.2). 
i have not tested it with 1.4

if i were you, i would 'test' the above settings first, then change to 
ESF.  that way at least you will have something to fall back too.