Nihgt service number on Cisco UCS

presumably, you meant cca, the forward is likely part of the scripting of the auto answer. Which might not be configurable via cca.

Check the cca, scheduling/night service option on whether it includes the forward directive.

Presumably within the scheduling you have a message given to the caller prior to forwarding out.

IN CCA>Configuration>Telephony>Call Handling> Night service I haev 4 extensions that have the "Night-service bell" option selected.  

There is nothing in scheduling.

I TFTP'd teh autoattendant script to myself and still could not find night service phoen number.  I change the call-forward night-service value on the correct ehpone dn and it's till going to the old answering service

Check whether the call-no answer on the participating extension is what forwards the phone.  You may have to go through the Auto Attendant scripts to what it is doing.  
The auto attendant when evening what does it do?

I have no idea.  I didn't set it up.  I just kind of inherited it and I don't' know these systems very well.

Here's the ephone-dn cofig fomr the CLI.  If i chaneg anything via the CLI it doesn't work

ephone-dn  586
 number 521 no-reg primary
 description *** CCA Floating Extension ***
 call-forward all 501
 call-forward night-service 9[redacted]
 night-service bell

How do I change the call-forward night-service value form CCA or CCME?

See if the following discussion, covers, it.  Look at the nigh-schedule/option within the extension dn 586 what the settings are there...

umm....how do I get there?  Is that under call handling?  I don't have 586 as an extension.   Just an ephone dn I believe Ext 521 maps to it  There is really nothing to configure under that extension, other than forwarding to the pilot.  (501)  Would screenshots help?

Check within the night service config wheter you define 586
I think the night script steps, should have one ...
Do not have access to a CCA on which I can look for you.

I do not define 586 in CCA.  I'll see ifthere is a way I can view the aef script

521 is an extension you have?
and 586 Z
501 is your attendant extension.

Defintely not in teh script.  i remove the call-forwad night-service 9XXXXX and forwarding stopped.

you did this via the CLI or via the CCA?? So adding it back with the new phone number works or does not work?

I did it via CCA.  I added the 521 extension in night phones, then set it to forward to that number and it didn't work.  It actually didn't go anywhere.  When I checked the config via CLI the command had been removed.  I restored the config to get it all ack to the old night service.

521 forwards to the pilot (501)in CAA

Can you at least tell me how to get toe teh CUE URL? i can get  the CCME fine

The cue URL is usually 10.1.1.1  with the phones 10.1.10.1 are you connecting on the 192.168.12.x directly connected to the ucs500? If your system has two nics, you would need to use
route add 10.1.1.0 mask 255.255.255.0 192.168.12.x
route add 10.1.10.0 mask 255.255.255.0 192.168.12.x
Where 192.268.12.x is tge ip assigned to your system by the uc500 device.