O2 FAQ

Default PIN 4321 or 0000
Your PUK number (Personal Unblocking Code)
If you enter an incorrect SIM card PIN number 3 times your phone will 'lock up'. You will be asked to enter your PUK number, If you need your code, please click HERE.. Please keep this number safe for future reference.
To Change The Number Of Rings On Your Phone Before Going To Answer Phone
**61*901*11*30# Call Button
Activating your Voicemail
If your Callback Service is not working and you wish to have this facility then please activate it.
To set this up dial 1750 followed by SEND
To deactivate it at any time dial 1760 followed by SEND
To retrieve your messages dial 901 SEND at any time. (In the UK)
If your Callback Service is still not working then dial 100 SEND and talk to the O2 operator who will help. Changing the greeting on your Voicemail to a personal message To set this up dial 901 followed by SEND.
Key # as soon as you hear the greeting then key 7. To start recording your greeting key 0. To end recording key 0. To deposit the greeting key 8.
This is another security measure but this time to protect your Callback Service. If you do not set it then someone else could access your Callback Service and listen to your messages or change your personal greeting. Again, we strongly recommend that you do this.
Accessing Voicemail from abroad. NB: Before travelling call 1780 followed by SEND to receive your Voicemail Retrieval Number ( VRN )
Whilst you are abroad you will not be automatically phoned to alert you that you have messages. However, many overseas networks do support text messaging
and a 'message waiting' icon will be sent.
Remember that you must use the '+' sign with the international country code when making calls while abroad. For example if calling back to the UK: Insert +44 (not 00 44) before the UK number and drop the 0 from the beginning of the STD code, dial the rest of the number as usual.
REMEMBER IF YOU STORE PHONE NUMBERS IN YOUR HANDSET USING THE '+' SIGN AND COUNTRY CODE FORMAT, YOU WILL GET THROUGH TO THOSE NUMBERS WHEN DIALLING FROM THE MEMORY WHETHER YOU ARE IN THE UK OR ABROAD.
To access your messages
If you have your VRN, dial it in international format and follow the instructions
If you do NOT have your VRN, dial +44 7802 090 100 followed by SEND. When prompted enter your mobile number and key *. Interrupt your greeting by keying * again. Then key 8705 or your own Callback PIN if you have changed it. Key 2 to hear your messages. This will be charged as an international call.
Other Information
Call Waiting alerts you to incoming calls when your mobile phone is already in use.
Call Holding lets you switch between
the calls. A soft beeping noise alerts you that someone else is trying to call while you are on the phone. On hearing the beep look at the display. Calling Line Identity will identify the name and/or number of who is calling. You then have three options: you can either end your current call which answers the second call automatically, or you can put your current call on hold while you answer the second call. If you choose not to take the second call, it will be transferred to your Voicemail Mailbox as usual.
Note: Privacy is maintained between the two calls at all times.
Instructions:
To activate Call Waiting dial *43# send.
To accept second call and disconnect first key 1 send.
To hold first call and accept second key 2 send.
To swap from one call to the other key 2 send.
To disconnect one call and reconnect the other key 1 send.
To cancel Call Waiting dial #43# send.
Settings For GPRS/MMS/WAP
These settings can be sent to you via SMS by your network provider by calling Customer Support
Alternatively:
For GPRS
By clicking HERE for online configuration
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O2 MMS settings
The o2 MMS settings can be sent direct to your mobile. Go to www.o2.co.uk/services/ota4/select. Alternatively, the settings are:
Access point name: wap.o2.co.uk (contract customers) or payandgo.o2.co.uk (pay-as-you-go customers)
Username: o2wap (contract customers) or payandgo (pay-as-you-go customers)
Password: password
Authentication: Normal
Data bearer: GPRS
Gateway IP (proxy) address: 193.113.200.195
Session mode: Permanent
Port number: 9201
URL address: http://mmsc.mms.o2.co.uk:8002/
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Wap gateway settings in the UK
The following table shows basic WAP gateway setup information for the main UK mobile phone operators. The menu options differ between handset manufacturers. Some of the common menu fields explained:
- Bearer type: There are two types: GSM or GPRS. GSM works by dialling a dedicated WAP dial-up number and should work on any WAP-enabled handset. GPRS is a newer technology, and only works on selected handsets. GPRS is an always-on service that is billed per-kilobyte, and not as GSM, which is billed per-minute.
- Dial-up number - The telephone number that your WAP browser needs to dial to connect. (Not required for GPRS)
- GPRS APN - If connecting over GPRS (as opposed to dial-up), you need an Access Point Node address, so the network knows where to direct your request. See our GPRS for full UK GPRS settings
- Username and password - Note that these are case sensitive, and should be typed in as shown
- Gateway IP details - WAP works by routing traffic through a Gateway that handles optimising the content efficiently. The address is made up of a series numbers separated by dots. This may also be referred to as the WAP Proxy Server address.
- Homepage - This is the main page provided by a network operator... The front-door for access to content provided via your network operator
- Session mode - See FAQ below
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O2 GPRS settings (WAP): |
O2 GPRS settings (Email/Web): |
Testimonials
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Robert Blore, Finance Director, DMC Software Solutions


