Hi again and thanks for that information.
OK - FIRST, if you are hearing "a few beeps" before the steady dial tone, that tells us that the service provider DOES have a "Voicemail system" active for the phone line. This is because those beeps are used as a "signal" to any phone attached to the line that there is either:
1) a NEW voicemail message waiting to be listened to - OR -
2) the voicemail system needs some "attention" - such as needing to be set up.
Now I did note that you mentioned "I never subscribed to" a voicemail system, but for MOST phone service providers today, when you START a service, about 99.9% of them OFFER voicemail and have that feature turned ON - as a default feature.
In other words, many providers have to be told to NOT activate that feature, or to turn it OFF.
So what I would recommend is contacting the service provider's "Technical Support" folks - via phone if possible - and have them turn OFF the voicemail system or otherwise configure it the way you want it to behave.
With all that being said, you CAN "mask" that signal on the Panasonic system - so that the "New Voice Mail" text will NOT be displayed on the handsets. This will NOT turn off the voicemail service or remove those beeps, but at least the text on the display(s) will no longer appear.
To MASK that signal, do the following on ANY handset of the system, while not on a call.
1) Pick up handset and press MENU
2) Press # 3 3 2 (pound-three-three-two).
3) Press the UP or DOWN arrows to highlight "Off"
4) Press the SAVE soft key (button below the display).
5) Press the OFF button (to exit programming).
That should do it,
Please let me know what you find or if you have any more questions.
If this has helped answer your question(s), please take a moment to rate MY service level (5-star is my goal) so that I get credit for my time helping you with this question.
You should see some "stars" (and SUBMIT button) to do that, but please let me know if you do NOT see them (you may have to REFRESH your screen) or can not use them.
Thanks, ***** *****