Some of the buttons don't work and the Hold function doesn't work

Once you start using the Conference key on the Prostar 816 you will find it really easy to use, and very helpful! I have uploaded a training video for you to watch, other prostar 816 clips are available on Youtube searching for abbeytel. Visit www.abbeytelcom.com for written copies.

start here ... http://www.samsung.com/us/support/main/supportMain.do

No. The Prostar 816 is a 1994ish analog system. It was replaced with the DCS digital systems and they do support CID. The phones are not interchangeable.

Carl

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 button for the fax line
4) press the button for the extensions that you wish to ring (the ones in the right next to the handset)
5) press # when finished with the line

with the handset on hook dial #06 the display should read MMC DISABLED enter 4321 then 1, press # to enter Press ALM/SD button, dial the 2 digit code 10-98, dial the phone number you want stored ( pressing hold inserts a 3 sec. pause and msg inserts a hookflash) press the ALM/SD button to store the number. repeat the procedure for additional speed dial programming.

with the handset on hook dial #06 the display should read MMC DISABLED enter 4321 then 1, press # to enterpress ALM/SD button, dial the 2 digit code 10-98, dial the phone number you want stored ( pressing hold inserts a 3 sec. pause and msg inserts a hookflash) press the ALM/SD button to store the number. repeat the procedure for additional speed dial programming.
hope that helps

The way to tell if you have either an 816 or an 824 is by the ammount of dss buttons on the left side by the handset. If there are 16 then its an 816, if there are 24 then its an 824. It should also be on the label on the bottom of the phone if its still there. hope that helps.

Transfering on a Prostar 816 is done by using the DSS buttons on the right hand side of the phone. This is accomplished by having your outside call in progress and pressing the DSS button of the persons extension you wish to transfer it to. If you want to screen the call wait for the extension to answer otherwise hang up and the call will be transfered. Transfer keys were only placed on the 800 series sets and was a non movible button.
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
The code for hold recall is #52
enter in your hold recall time in sec. and in a 3 digit format. i.e. 30 seconds = 030 a minute and a half is 090 and so on.
press # when finished

it sounds like the memory battery on the main board is no longer working which means that it'll happen again.

You can stop the recall function on any indidual call by double pressing the hold key to invoke exclusive hold. Watch this clip or see many more at www.AbbeyTelecom.com