[contact details] Add instant messaging and VoIP phone details
Submitted by Bastián
In gnome-contacts it is necessary to add details of IM and Internet calling (VoIP) to contacts. Currently in GNOME through Empathy you can do this type of work, and other related applications: Ekiga, Jitsi, Pidgin, etc.
Also, if this information exists in online accounts like Google or owncloud, not shown in contacts.
Note: Google appears IM section (XMPP, ICQ, SIMPLE, Hangout, Skype, etc) and another section called "Internet calls." I do not know the internal workings, but I consider more appropriate is a section called "VoIP Phone" which includes systems such as Skype to go, SIP, hangout out, etc.