Ribbit, owned by BT (British Telecom) announced the new service Ribbit Mobile, that provides personal virtual PBX and can be linked to your existing mobile number. Ribbit Mobile's features are very similar to Google Voice - it can forward incoming calls according to your settings, send/receive sms, voicemail and transcribe voicemail. Unlike Google Voice, that only works with phone-company phones and SIP, Ribbit can also connect to Skype. And its main advantage is Web integration. Ribbit Mobile allows to call and receive calls in the web interface or using the widget. That is what Google Voice can't do.