My phone rings once and immediately goes to voice mail

SOURCE: no ring,goes directly to voicemail

your phone is on 'do not disturb mode'. call your provider and ask how to shut it off. for telus mobility it is *79 then hit send

SOURCE: NEC Dterm 80 calls won't go to voice mail

for us i just found this out.

1.Fwd B/NA
2.1 - 1:set-0:cancel
4.200
5.speaker
after 4 rings it goes to voicemail
this works for us.
i hope it works for others too.

turn this feature off
1.hit fwd b/na
2.0:cancel
3.exit
4.exit
should see the normal display then.

SOURCE: phone won't ring

Check your call options to see if something called "Call Forward" is on. That might be your problem.

SOURCE: number of rings

Sounds like you have either send all calls (SAC) enabled or your station is call forwarded to voicemail.

Disabling send all calls or call forward (as applicable) will solve the problem.

SOURCE: all my calls are going straight to voice mail. my

check your call barring option, you may have mistakenly barred your incoming calls.