How do i change the time on my avaya 18d series 2 partner phone

The extension is set to "Answer Only Mode" you need to change it to "Record Mode". Here is the link to make the change.
https://support.avaya.com/public/index?page=content&id=ADMN101939

Mute the speaker, mute the ringing?

Press Feature 00 (zero, zero) from station 10 or 11. Press left intercom button twice, press #103, and then enter time in military format (24 hr). Press feature 00 again. This is all done with the handset down.

Get yourself 2 alkaline AA batteries, keep the power on, and look for the door on the lower part of the face on the ACS processor module. Pop the cover and replace the batteries.

Carl

http://dstech1.com/changing-time-on-a-partner/

Here you go.

This should do ya.

http://dstech1.com/changing-time-on-a-partner/

Sounds like you changed your line selection. Changing line selection on a Partner system is done on either ext 10 or 11.
At one of those ext's press the feature key and "00"
Next press the left hand intercom twice
The display should say system programming

Press the right hand intercom once. The display should say Centralized Programming.

Enter in the extension number that you want to program.

enter **
press the lit line in the order you want the to be used, i.e. line 2 then line 3 then line 4 etc.
enter ** when finished with line selection
.
Press feature "00" to logout
Hope that helps

You can not do phone system programming from anything EXCEPT Extensions 10 or 11.

http://www.telemanuals.com/forum/index.php?topic=2.0

A simple Google search found a manual covering the Avaya (Partner) 18d phone.

It can be found here:

http://www.getempire.com/media/guides/manuals/partner/456804_6.pdf

Good luck.

Are you trying to change if it rings or how it sounds when it rings?

The phone you have (Partner 18D) can be used on several different Avaya phone systems that all program differently. To change when it rings, this would need to done in the system programming (not the phone) All the manuals are avaialble on Avaya's web site but you need to know which system you have before you can start searching. www.avaya.com