[Asterisk-Users] PRI protocol question...

[John Harragin]

I'm having difficulty getting a PRI working between asterisk and a Merlin 
Legend. I have been attempting to get it going as esf, b8zs & 5ess (although 
I have tried other switchtypes...).  I found the following info in the Legend 
docs:

If the switch type is 5ESS, the protocol MUST be set for ATT Custom.
If switch type is DMS-100, the protocol MUST be set for NTNAPRI

The README in libpri implies that switchtype=5ess is ATT Custom

from README:
...it has been tested work with NI-2, Nortel DMS-100, and Lucent 5E Custom 
protocols on switches from Nortel and Lucent.
  
Is the protocol set to ATT Custom with the switchtype=5ess parameter? Are the 
terms ATT Custom or NTNAPRI meaningfull to asterisk?

Thanks,

John