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AT&T Grants Denies Us Mobile VoIP Freedom
Originally posted on VoIP & Gadgets Blog, here: http://blog.tmcnet.com/blog/tom-keating/voip/att-grants-denies-us-mobile-voip-freedom.asp.
 The big news last week was how AT&T (News - Alert) grants denies us mobile VoIP freedom. Just last week I wrote how AT&T had "granted" us mobile VoIP freedom by finally allowing SIP port 5060 on their 3G data network. I was able to use siphon, a SIP-based application on my jailbroken iPhone to register with TMC's (News - Alert) IP-PBX and make/receive phone calls.
Well apparently, AT&T must read my blog or something, because once again SIP port 5060 is blocked. I tried siphon on my iPhone (News - Alert) this morning and now it won't register. I tested port 5060 and it is indeed blocked. Alas, so no more SIP calls using siphon.  The AT&T Overlord giveth, and the AT&T Overlord taketh away. 
Hey FCC (News - Alert), can you give AT&T a little smackdown for me please? Just last week AT&T announced it was allowing VoIP over 3G, so why the inconsistency? Is it because siphon is a jailbroken app and not an "official" iTunes app? I doubt it. I doubt AT&T is able to detect what iPhone application is making an outbound connection. That would be a form of spyware if AT&T knew exactly which iPhone applications you were using. So seems to me that AT&T is still blocking VoIP calling over their 3G data connection. AT&T is talking a big game about being "open", but they aren't backing it up. I'm sure they'll blame it on some network glitch or something. AT&T could be dragging their feet on allowing VoIP over their 3G network hoping the mere "huge" announcement of support for VoIP over 3G will get the FCC off their backs. It's time for the FCC to stop AT&T's stalling tactics. I want my mobile VoIP freedom and I want it now!
Tags: 3g, apple, at&t, fcc, freedom, iphone, mobile VoIP, sip, voip, wireless
Related tags: grants denies, freedom, mobile, siphon, iphone, allowing
Related Entries
AT&T Grants Us Mobile VoIP Freedom - Oct 08, 2009
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Skype on iPhone works over 3G - Mar 31, 2009
Vonage's Killer iPhone app - Aug 31, 2009
Google Voice + Gizmo5 = Free Inbound & Outbound Calls - Jul 27, 2009
New Nimbuzz VoIP app for the iPhone and iPod touch - Mar 19, 2009
Nokia runs Skype on Wi-Fi and 3G - Suck on that iPhone! - Feb 17, 2009
Mobile VoIP Challenges - Oct 20, 2008
Tom writes 'iHate My iPhone Because its iDead' - Jul 12, 2008
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