c7445a92_one_Warehouse_Help_and_Support__Personalising_voicemail
[Activating voicemail] Dial 1750 then press SEND to activate message service. Security 901 then press SEND Dial 901 then press SEND [Deactivating voicemail] Dial 1760 then press SEND to deactivate message service. [Personalising voicemail] 
Dial 901 Enter 4-digit voicemail PIN Press 1 Press 7 to change your mailbox greeting Press 4 to record a personal greeting To start recording press 0 To save recording, press 8
Setting up voicemail - Carphone Warehouse Help and Support
Personalising voicemail