My base phone only rings twice then stops leaves a no when i ring that no am told it does not egsist

SOURCE: searching for base

My long-term experience with these phones is that occasionally, they get themselves into some kind of weird state: this is usually indicated by the flashing "searching" message.

In all cases it's been cured by unplugging the power supply AND the phone-line (both simultaneously) from the base, waiting a few seconds, then re-connecting. Normally this sorts things out, but will require you to re-set time& date (the base can sometimes still derive power from the incoming 50v line). Batteries out of handsets is a last (addtional) resort. I've very rarely had to re-register.

SOURCE: phone doesn't ring on incoming calls

i cannot fix the number of times for the ringer on my vetch phoneset

SOURCE: Phone wont ring

Per the manual, If there is a musical note in the display with a slash thru it, you have turned off the ringer. You have done this by pressing and holding the # button.
If you have the manual it's on the bottom of page 20 and continues on 21.
If not follow these steps.

Press Menu
Press CID/PBK (Personal set)
Press Menu (Handset Tone)
Press Menu (Ring Tone)
Press Menu and then CID/PBK to select the volume you want
Press Menu (Save Setting)

click this link to get the manual

http://www.p4c.philips.com/files/c/cd4452b_37/cd4452b_37_dfu_aen.pdf

SOURCE: My Phones only ring twice before it goes to VoiceMail

What you can do is go into the management console for your system and find the forwarding this is under extentions option 2 fwd/dnd select your extention number and on the bottom option FWD No Answer Time (s) set it to 10 or more and this will change the number of rings.

I use a KX - TDA600 PABX so I hope this helps

SOURCE: Avaya 18D Change Number of Rings

Programming is done on extension 10 or 11
Press feature 00
Left intercom, Left intercom
#506
mode 1
line 01
number of rings 4
do the same for all lines
Cheers