There are several applications that allow a user to dial a phone number
by clicking a tel: URI or sip: URI in their browser.
Does OpenGroupware have the ability to display phone numbers as tel: URIs?
e.g. if the phone number is +44 20 7135 7000, the contact list would display
<a href="tel:+442071357000">+44 20 7135 7000</a>
Regards,
Daniel