Otelo

Otelo is the Office of the Telecommunications Ombudsman in the United Kingdom.

The organisation deals with complaints about:

The way in which mobile and fixed phones, faxes and internet service are provided.
Certain services like Short Messaging Services (SMS or texting), voice mail and call forwarding
Services and products for people with disabilities, like text relay (an operator service that translates voice to text and text to voice) and free directory enquiries