How do I change the amount of rings before voicemail.

You will need to change the programming for the ext that you want to have the lines appearing on.
Enter programming - Feature **266344
PW - 266344
Press the show key - (top right arroe that is lit on the display)
Enter the ext # you want to change
this will bring you to line appearance press top r arrow
line assignment press top right arrow
show line - enter 001,002 or whatever line(s) you want to ring.
press the change softkey for each line to appear and ring instead of unassigned. Press the next (bottom r arrow) to go through each line after entering 001....
then release.
*** Make sure the sets you change are not forwarded to voicemail after a certain amount of rings otherwise all calls ringing on the newly programmed set will go to that persons voicemail.

The Uniden DECT 1363 isn't an answering machine. It will continue to ring until someone picks up, a separate answering machine or voicemail system picks up, or the caller hangs up. You need to refer to the documentation for your answering machine or voicemail system.

If you require further assistance, please repost your question specifying the make and model of your answering machine or voicemail system.

For all of you that want a real answer here ya go. This isn't something you can change on your phone this has to be changed with your service provider. If you are with AT&T, like I am, then this is the solution for you (link of where I found it below as well). 1. enter *#61*11# and press send/talk on your phone.
2. write down the number your calls are currently forwarded to (usually +1401#######, but not always). this is your voicemail deposit number.
3. decide how long you want the phone to ring in 5 second intervals. the maximum time is 30 seconds. i'd recommend 25 seconds or less, as using 30 may cause you to be billed for a minute of airtime each time someone is forwarded to voicemail.
4. now enter **61*[number from step 2]*11*[number from step 3, use 2 digits]# and press send/talk.

example
voicemail deposit number is +14015551212
you want it to ring for 20 seconds
you would enter **61*+14015551212*11*20# and press send/talk.

if you have trouble with the above procedure, you can always call customer care at 800-331-0500 to change it.
OR QUESTION: How can I adjust the number of times my wireless phone will ring before the caller goes to voicemail? ANSWER: Contact Customer Care at 1-800-331-0500 or dial 611 from your wireless phone to change the amount of time your phone will ring before going to voice mail. The adjustments made by Customer Care are based on the traditional ring heard by the caller, not the unique Ringtone you hear from your phone. I just wanted to add that increasing the ring length to 30 seconds will not cause you to be charged a minute should the caller go to voicemail. This was confirmed by an AT&T technician.
http://forums.att.com/t5/Voice-Mail/Increase-the-number-of-rings-before-a-call-goes-to-the-voicemail/td-p/2576651

The 6041 isn't an answering machine. If you have an answering machine connected to your phone, refer to its documentation. If you subscribe to a voicemail service offered by your telephone company, contact them for information.

If you need further assistance, please feel free to repost your question, but make sure you specify whatever answering machine/voicemail system you're using.

1. Press the star (*) key on your phone. Follow this symbol with the number "61." Press star (*) once more. Then, click "Send" to place the call.
2. Type the number one (1) and then enter the number for your voicemail box.
3. Press star (*) twice
4. Enter a time amount. This number will be how many seconds your phone rings before the call goes to your voicemail. This number can only be changed in multiples of five. The maximum time you can enter is 30 seconds.
5. Press pound (#). Your settings will be changed.

Do you have it in voicemail mode? Is voicemail set for short rings? Usually between 4 - 10 rings. It may be that it's set to 4ish rings.
I know nothing about this phone so the above is a stab in the dark.

On ext 10 press feature 00, left intercom twice, #506, mode 1, line 01, press 3.
Do this for all of your lines

The call forwarding was turned off. To turn on, press speaker, enter 793, press 1(for set), press extention number, and enter 300. If you have call forwarding on and are looking for more rings, do the above steps except press 2 (for clear).

There is no option in the phone that will allow you to set the amount of rings before it will go to voicemail. If you want it to go directly to your voicemail you can always turn off the phone or ignore the call. This would take them directly to voicemail.

the voicemail ring count has to be setup on your phone line thru your voicemail menu,and has nothing to do with the answering machine. if you don't want the answering machine to pickup, just shut it off. follow the prompt's for your voicemail settings, there you'll be able to set the amount of rings you want.
hope this helps.
wg