How to extended the ringing time before goes to voicemail on Toshiba DKT3020SD Corded Phone

SOURCE: night button and incoming calls

The programs involved with you ringing are 81 ( no light or Day Mode ), 84 ( blinking red light or Day 2 Mode ), and 87 ( solid red light or Night Mode ). To change the ringing assignments you need to know the port numbers of the phones you want to ring or not ring. You can do this by pressing DN/ICM dialing # 4 0 2 at each phone, the diaplay will show the physical and logical port numbers. These numbers will be used to turn on or off the aaociated lamps within the above programs. Do you have anyone on staff that understands the system programming ? Let me know ...Mike

SOURCE: changing number of rings

If you would go to your phone and dial intcorm #6041 plus thevoice maik extension number than enter time in 20 for exemple is 5 ring before going to voice mail than hang up.

SOURCE: Ring Volume on DKT2020-SD Toshiba multi-line phone system

http://toshibasets.com/uploads/Strata_DK_user_guide.pdf

SOURCE: need to set ringer on phone to ring in my office

is because the ringging assignment only set to ring at receptionist phone.
u may need contact the phone provider to set the ringging assignment to other for other phone which to ring for incoming call

SOURCE: Extending number of rings before voice mail engages

Is the caller being transfered to the ext or is it on incoming calls?
Tony