O2

Hi. On average i need to call a landline number in Jersey from my mobile here in the UK three times a week , but incur extra charges to do so. Is there any way i can use my unlimited minutes on my pay monthly contract to reduce or eliminate these ext...

Can't change ring duration or switch on or off voice mail with correct codes. When i attempt these actions i always get this message after dialling the relevant code. Call forwarding connection problem or invalid MMI code when no reply for all speech...