Useful numbers and dialling codes
Useful numbers and extensions, as well as information around setting up groups, call diverts and more.
Useful numbers
Emergency - 0115 95 18888
Security - 0115 95 13013
Estates Helpline - 0115 95 16666
IT Service Desk- 0115 95 16677
Nightline - 0115 95 14985
Advice and information on which number to call for assistance in the event of an emergency using the University's telephone system:
Telephone system codes
Set a call divert
To set a call divert (also known as ‘follow-me’) on your telephone extension:
- Lift the handset
- Enter *21 immediately followed by either the:
- internal extension number e.g. for extension 1234, enter *211234.
- external number (prefixed with a 9)
- If you are using a Polycom IP, you will need to press 'Dial' to complete the command, if not wait a second or two for the phone system to register the instruction.
If you do not have the access to dial the target number from your phone manually, diverting your phone to the number will not work.
Remove a divert
To remove a divert:
- Lift the handset of the diverted phone and enter #21
- If you are using a Polycom IP, you will also need to press 'Dial' to complete the command.
If you have already liaised with Telephone Services to have a group pick up arrangement configured, to pick up the longest ringing phone in your group:
- Lift the handset
- Enter *84
If you are not sure whether there is a group setup, or whether all the correct extensions are in your group, please contact the IT Service Desk.
Users with a group pick up arrangement can also pick up a specific ringing extension from their phone.
If multiple phones within your group are ringing and you wish to pick up a specific extension:
- Lift the handset
- Enter *80 <extension>.
- If you are a Polycom IP phone user, you will also need to press 'Dial'.
Call forward settings (such as a call forward on no answer to voicemail) cannot be changed by the user.
If you require the call forward settings on your extension to be changed (either the destination number or the number of rings before forwarding the call) please contact the IT Service Desk.
University telephone extension direct dial prefixes
Direct dial prefixes
University telephone extension numbers | Direct dial prefix required |
13000 - 16999 |
0115 95 xxxxx |
24600 - 24999 |
01332 7 xxxxx |
30000 - 32999 |
0115 82 xxxxx |
48120 - 48189 |
01522 8 xxxxx |
65600 - 65660 |
01623 4 xxxxx |
66000 - 68999 |
0115 84 xxxxx |
75050 - 75089 |
01205 8 xxxxx |
83000 - 83099 |
0115 82 xxxxx |
84000 - 87999 |
0115 74 xxxxx |
89050 - 89069 |
01476 5 xxxxx |
Telephone extensions not in the ranges listed do not have a direct dial number associated but can be contacted by calling the University's primary published number +44 (0) 115 95 15151.
Internal dialling codes from extensions on the University telephone system
To | Prefix extension with |
Other University extensions (including Medical School & School of Nursing sites) |
Dial number only |
NHS extensions in Queens Medical Centre |
74 |
NHS extensions in Nottingham City Hospital |
74 |
NHS extensions in Kings Mill Hospital, Mansfield |
748 |
Derby City General Hospital |
72 |
London Road Community Hospital |
72 |
Hearing Research |
18133 |
Students Union |
68800 |
Cripps Health Centre |
68888 |
Internal dialling codes from NHS extensions at the Queens Medical Centre and Nottingham City Hospital
To | Prefix extension with |
University extensions (including Medical School) |
783 |
QMC & City Hospital extensions |
Dial number only |
Hearing Research |
783 18133 |
Students Union |
783 68800 |
Internal dialling code from NHS extensions at Kings Mill Hospital
To | Prefix extension with |
University extensions (including Medical School) |
85783 |
Self Service requests
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