Class of Trunks (COT)
The Class of Trunk (COT) defines the switching technology parameters for call processing. Each trunk is assigned to a specific COT with multiple parameters. In this example, they are used as follows:
DISPLAY-COT:COTNO=3;
H500: AMO COT STARTED
COT: 3 INFO: anynode
DEVICE: INDEP SOURCE: DB
PARAMETER:
CALL IF USER HANGS UP IN CONSULTATION CALL RCL
TRUNK CALL TRANSFER XFER
TRUNK SIGNALING ANSWER ANS
CALL EXTEND FOR BUSY, RING OR CALL STATE CEBC
NETWORKWIDE AUTOMATIC CALLBACK ON BUSY CBBN
NETWORKWIDE AUTOMATIC CALLBACK ON FREE CBFN
NETWORKWIDE CALL FORWARDING PERMITTED FWDN
NETWORKWIDE FORWARDING NO-ANSWER FNAN
DON'T RELEASE CALL TO BUSY HUNT GROUP BSHT
END-OF-DIAL FOR BLOCK IS SET BLOC
SEND NO NODE NUMBER TO PARTNER LWNC
CONNECTION TO ROUTE OPTIMIZATION NODE ROPT
INCOMING CIRCUIT FROM SYSTEM WITHOUT LCR NLCR
TSC-SIGNALING FOR NETWORKWIDE FEATURES (MANDATORY) TSCS
USE DEFAULT NODE NUMBER OF LINE DFNN
NO LOCAL HOLDTONE, HOLDTONE FROM REMOTE SYSTEM NLHT
INCOMING CIRCUIT FROM SYSTEM WITHOUT LCR (DATA) NLRD
PIN NETWORKWIDE POSSIBLE PINR
SEND NO BILLINGELEMENTS SNBE
DONT SEND DIV_LEG OPERATIONS, BASED ON DSS1 AND QSIG DSDL
SUPPRESS SIGNALING OF CDR-E SPECIFIC MESSAGES NCDR
LAST REDIRECTING NUMBER IS SEND TO PHONEMAIL LRPM
NO FLAG TRACE NOFT
NPI ISDN, OUTGOING CALL NPIS
NO OUTGOING CALLTRANSFER INFOS ( REMOTE HOLD/ECT) NOCT
INTERNAL DIAL TONE DTNI