Prison Voicemail - a service enabling families to exchange voicemail messages with their loved ones in prison.

Prison Reform Trust's advice and information service - provides free information about prison life, rules and regulations, and prisoners' rights. They also give advice and assistance (please note they cannot give legal advice). Prisoners (or their relatives) can write to them or phone 020 7251 5070.

Nacro's Resettlement Plus Helpline offers information and advice to ex-offenders, serving prisoners, their families and friends about issues such as how to find work, getting somewhere to live, and dealing with a criminal record. Call freephone 0800 0181259.

Unlock - the national association of reformed offenders. Unlock assists serving and former offenders who want to become productive members of their local communities, and campaigns on behalf of reformed offenders.

Stop it Now - supports adults to play their part in preventing child sexual abuse. Call the freephone helpline on 0808 1000 900. 

Prisoners Advice Service - free legal advice for prisoners.