E4051 Cmd Rej: TS value on the E1 already in use by a signaling link
The value specified for the ts parameter cannot already be in use by the E1 card.
Recovery
Display the E1 port, card location, and timeslot information. Enter the rtrv-e1 command.
Re-enter the ent-slk command that generated this error message, specifying a valid combination of parameters. Refer to the command description in Commands User's Guide and to the Database Administration - SS7 User's Guide for assistance.