Thread: 100 million reasons to use Skype
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Jerome is offline Jerome
2007-07-10 , 16:55
Posts: 477 | Thanked: 118 times | Joined on Dec 2005 @ Munich, Germany
#47
Originally Posted by RogerS View Post
My point is that the usefulness of Skype's large user base is way more than Gizmo's or Google Talk's.
The gizmo user base is bigger than you may think. Using sipbroker, you can actually call (for free, using a direct i.p. link) about every SIP phone on the planet. Except telcos like orange which refuse sipbroker exchange, of course.

Originally Posted by RogerS View Post
And if I could use my Verizon FiOS router to make Gizmo calls, I would but I can't. [Hm-m. Points made earlier in this thread are very interesting in that regard.]
Gizmo uses the SIP protocol, but on non-standard ports. The most likely reason why it would not work is:
-that your router does not release incoming ports (is not "plug and play" compatible), in which case you'll have to configure the ports manually.
-that your router blocks udp traffic.

From the gizmo manual:

For Gizmo to work effectively, the following should be opened up on your firewall:
• Incoming UDP port 5005 (RTCP - Real Time Control Protocol)
• Incoming UDP port 64064 (Gizmo default for SIP messaging)
• Incoming UDP port 5004 (Gizmo default for RTP traffic (the actual voice messages)
• Outgoing TCP port 7070 (SRS relay and Jabber protocol)
• All outgoing UDP ports above 1023