In CRM 2011 it's really easy to link to another CRM record or to link to an external website from within dialogs and emails. However, when I try to create non-http links (such as sip: or tel:) they do not work. I have tried using the hyperlink button and also using the hyperlink syntax:
<hyperlink>
<name>555-555-5555</name>
<value>sip:5555555555</value>
</hyperlink>
As a result, it looks like a proper hyperlink, but clicking it does nothing. When examining the source, it appears as if the hyperlink is linking to the dialog page itself.
Is there another way to accomplish this?