[asterisk-users] ISDN Protocol

[Lincoln Zuljewic Silva]

    Hello all. I'm installing a Digium TE110P board on Asterisk to work 
with a telephony hardware. The telephony hardware use ISDN and no-ISDN 
but the Digium board only use ISDN.
    My telephony hardware can use the folows ISDN protocols: n12, 4ess, 
Sess, 4ess_tr, Sess_tr, net5, qsig, qsig_s, ntt, ndd and 1tr6. In 
zaptel.conf, I saw that the Digium board can use: cas and ccs (but 
neither are ISDN protocols that could be related to my telephony hardware).
    Anybody have any idea of what protocol could I use ?

    Thanks a lot !
    Lincoln