The supplementary service protocol to use for services over this trunk group. Supplementary service protocols are mutually exclusive.
Valid Entry
Usage
a
National.
b
ISO/ETSI QSIG Private Network. Also used for SBS signaling trunks.
c
ETSI public network.
d
European Computer Manufacturer’s Association (ECMA) QSIG private network (supports only Name Identification and Additional Network Feature Transit Counter (ANF-TC)).
e
DCS with Rerouting. Do not use with Service Type of
.
f
ISDN Feature Plus Public network feature plus signaling.
