How can I fix my Synergy 2111 phone?

Yes, I meant below!

chringo (again!)
October 2006

Forgot to mention the first bit - hold down the page button on the base station for 10 seconds first - you will hear a confirmation tone, then follow as above.

chringo (again!)
October 2006

Press options, then 5, then whatever base station number you want to assign the phone to (usually base 1, unless you have more than one base), - there should then be a two-tone beep - then enter the base pin (usually 0000, unless, of course, you've changed it)

e.g. options, 5, 1, (wait for beep), 0000

chringo
October 2006