Ofcom has published details of the consumer telecoms complaints it's received between October 2010 and February 2011.

The regulator receives an average of 450 complaints per day about fixed-line, broadband and mobile telecoms providers. Issues include mis-selling, billing errors, lack of service and customer service problems.

Two new calling services for Facebook's voice chat feature have been announced today by mobile network operators.

In the USA, T-Mobile has created a new brand called Bobsled and a PC-based application for Facebook. It enables any Facebook users to call their Facebook friends free from a PC and to send voice messages to their friends. And here in the UK, virtual network giffgaff has created a free Facebook chat app for the iPhone.

Channel 4 News reports that Everything Everywhere has suspended its 10% handling charge for text message donations to charities. The company, which is responsible for the Orange and T-Mobile UK networks, says it's unlikely to reinstate the charge.

UK networks started cutting the costs of SMS donations in 2009, with O2 and Vodafone removing all admin charges last summer. This move was followed recently by Virgin Mobile and Three.

Everything Everywhere says another three new mobile virtual network operators will be launching on its network in the next month, bringing its total number of MVNOs to 21.

All three of the new virtual networks are connecting through mobile virtual network aggregator Transatel, which started working with Orange UK in October 2009.

It's been a week of acquisition announcements, with T-Mobile USA, Phones 4U and Snaptu all apparently changing hands. The team also talks about Ofcom's 4G auction plans, Android legal action, the Mobile News Awards... and much more.