This is a very old presentation and proposal (~2000) for telephony services in the GNOME desktop. Some more modern version of this may yet emerge from GNU Telephony based on D-Bus.

1. GNOME Telephony
Evolving past the great divide

2. Innovation & Freedom Over Time
Evolving past the great desktop divide
Freedom in Free Markets Monopolies
60's
70's

3. The Problem
* Dialing telephone numbers from your address book
* Identifying incoming callers automatically
* Managing call agents and call centers
* Lack of good clip art for this slide

4. Computer Telephony Integration
ITU S.100 CSTA

5. Proprietary Vendor Strikes!
TAPI, SPI, and the
application Developer
Everyone has to use binaries:
Application source secret
(TAPI callable API)
Source Secret OS API CODE
Source Secret OS SPI Code
(SPI callable for Telephony)
Source Secret Telephony Vendor
The OS vendor has market pressure to create changes, requiring both the
application developer and the telephony provider to rewrite code each
time. Two sets of separate source secret interfaces have to be
maintained in sync. Two separate levels of calls need to be
made for each operation. No reuse of implementations possible.

6. Telephony Liberation!
IETF!
New groups and bodies create
true open standards for computer
telephony!
First effort, SCTP
(Simple Computer
Telephony Control
Protocol)
TOSI – Single level API library
SIP, with some history in SCTP

7. Free Software Telephony & GNOME
GNU Gatekeeper
Libgtaps – c callable api front end
for tcp protocol to telephony servers
(tosi, sctp, sip based history)
Evolution, dialing
address book
Screen­pop applet,
who is calling?
(based on gm
concepts)
CRM
GNOME
Meeting
Softphone
clients

8. Problems to solve in GTAPS
* Final specification of C callable library – largely complete, but need
input from those that may actually use it.
* Specification of backend interconnect protocol – derivable from tcp
method of tosi? New methods should be used?
* Full mailing list and cvs repository to host at.
* Implementation of GNOME applet
* Selection of appropriate project logo!

9. And finally...
Happy Hacking!

10. And finally...
Happy Hacking!