NBL-T Series PBX Model No.：NBL-T 416/424/432/816/824/832 No. of C.O. Lines： 4-8 No. of Extensions： 8-32 Highlighting Features 1. SMDR(Optional function) 2. Extendible 416 to 832 3. 3 pieces of OGM 4. Daytime and Night Service 5. Operator Assistant/Auto Attendant 6. Call Transfer,Busy Transfer 7. External music source 8. Flexible Coding 9. Call Duration Control 10.Outgoing call Restriction 11. Extension Password 12. Telephone Conference 13. Secretary Call 14. Call Parking 15. Call Pick-up 16. Broadcast 17. Monitor 18. Caller ID