Instruction manual

Page 1270 of 3156 Digital Trunk Interface – Commonwealth of Independent States
553-3001-306 Standard 10.00 January 2002
P EOSF(S) NO Pulsed End of Selection Free is not used.
EOSF(S) NO 1001 Steady End of Selection Free, where:
NO = local trunk, and
1001 = incoming toll trunk.
P EOSB(S) NO Pulsed End of Selection Busy is not used.
EOSB (S) 0001 Steady End of Selection Busy.
P OPCA(R) NO Operator calling.
E_CONN(S) 1001 1101 Connect Send (Answer), where:
1001 = local trunk, and
1101 = incoming toll trunk.
CONN(R) 1001 0001 Connect received, where:
1001 = local trunk, and
0001 = incoming toll trunk.
P RRC(S) NO Register recall.
P BURS(S) NO Bring up receiver for L1 networking.
P BURS(R) NO Bring up receiver for L1 networking.
CLRB(S) 0001 1001 Clear Back (B Ring Off), where:
0001 = local trunk, and
1001 = incoming toll trunk.
CLRF(R) 0001 NO Clear Forward (A Ring Off), where:
0001 = local trunk (used only to start two-way release),
and
NO = incoming toll trunk.
P OPRS(R) NO Operator manual recall.
P NXFR(S) NO Network transfer.
P ESNW(S) NO ESN wink.
P CAS(S) NO Centralized attendant.
Outgoing Calls