20 Most Recent NEC DSX 22 Corded Phone - Page 3 Questions & Answers

You can always hit it with a hammer by cutting the power wait 2 min and turn it back on. That should knock it down. However it won't tell you what happened to begin with.

Outside callers, only get an operators voicemail, when your phone can't be reached. For whatever reason. No contact to a cell, switched off, airplane mode, you name it. Then when you have contact to the provider, you should setup your voicemail, the way your provider would like you to do.

Again..... insufficient information. I PRESUME you have an NEC system of some type and ASSUME you have an external paging system. IF this is so, THEN there are normally separate adjustment on the Page pac for ringer and paging. Someone probably messed with the input signal or the output volume or the impedance was wrong to begin with.

speaker 723

try speaker 773

You can also try a factory reset of the phone. However, you will lose everything on the phone, but not what's on the SIM card or on any SD card.

https://www.manualslib.com/manual/832824/Nec-Sl1000.html NEC SL1000 Programming Manual

it is the vwmi part of the global set up read your owners manual and reset it