Hello...I have a Samsung Prostar 816 Plus and one of my phone lines do not have a ringtone. My Phone company checked all lines and stated the issue is in my telephone system. please advise. Thanks

Call the phone company and ask them the question they should help or come around and fix. Regards Billy

Did you try unplugging power cord for five minutes? often this fix the problem.

root your phone and edit call ring delay in build.prop in the root of your phones system storage.

To change the ringing on a prostar 816 you first need to be at a display set (doesn't matter what the extension number is).
with the handset down, enter #20 the screen should say MMC DISABLED
enter in 1 2 3 4 1 # (that enables programming)
enter in #62 the screen should say day ring assn
press the line you wish to program
press the buttons for the extensions that you wish to ring (the ones in the right next to the handset)
press # when finished with the line
repeat steps 2 through 5 for the remainder of the lines you wish to change
press # when finished.

To change the ringing on a prostar 816 you first need to be at a display set (doesn't matter what the extension number is).
with the handset down enter #20 the screen should say MMC DISABLED
1) enter in 1 2 3 4 1 # (that enables programming)
2) enter in #62 the screen should say day ring assn
3) press the line you wish to program
4) press the buttons for the extensions that you wish to ring (the ones in the right next to the handset)
5) press # when finished with the line
6) repeat steps 2 through 5 for the remainder of the lines you wish to change
press #when finished. hope that helps

To change the ringing on a prostar 816 you first need to be at a display set (doesn't matter what the extension number is).
with the handset down enter #20 the screen should say MMC DISABLED
1) enter in 1 2 3 4 1 # (that enables programming)
2) enter in #62 the screen should say day ring assn
3) press the line you wish to program
4) press the buttons for the extensions that you wish to ring (the ones in the right next to the handset)
5) press # when finished with the line
6) repeat steps 2 through 5 for the remainder of the lines you wish to change
press #when finished. hope that helps

This sounds like you may have a problem with the Voice Mail card, If you have sorted this I have uploaded a video for general usage tips for the Voice Mail. please visit www.abbeytelecom.com to find out more info

The Station Toll Class of the phone needs to be changed to a Toll Class 5 which allows 911 calls and certain numbers set in MMC # 94. The program to do this is MMC # 30. The problem is when MMC # 30 is accessed it displays the Toll Class for all 16 phones so use caution that you do not change the wrong extension. If you still need help with this problem please repost and I can walk you thru the process.

The battery is dead and will not maintain system programing after a power outage. If the battery is not replaced this problem will occur everytime the power goes out.

The Prostar 816 phone system can only use Prostar 816 phones. There is a rare larger Prostar system that can use other Prostar phones along with the 816 but typically was only installed in situations where more than 16 phones were needed. If you are looking at non-prostar phones like the Samsung DCS 12 then they certainly will not work.