Comments on: #Sprint International Calling Cards don’t work with AT&T #iPhones

By: hardrunner

hardrunner — Sun, 07 Mar 2010 00:25:28 +0000

Fascinating! I’m so grateful to have found this article. I was having the exact same problem. Your review really helped. Just like you said, the iPhone never recognized that the call had started! But, guess what? I’m using an AT&T calling card…so I imagine the problem is with the phone rather than the calling cards.

It makes sense to me that the iPhone may have been “over engineered”. I think it’s so intelligent that it waits for the phone call to be connected before implementing the pause programming in the number. I’ve had other mobile phones that would simply start dialing the additional numbers after the pause regardless to whether the phone call was connected. That happened frequently enough that I would even program two pauses in every number as a contingency.

Well, at least my calling card access allows audio response, so I can just speak the number when the call connects. Of course, I have to navigate back to the contacts and dig for the number before I can continue. Guess I have to get fast at navigating back to the access number.

Thanks again for digging so deep into this issue and providing such a well written explanation.

By: Jadayu

Jadayu — Tue, 27 Oct 2009 05:49:03 +0000

Fantastico. This issue is not only with iPhone. It is also with SIP / VOIP telephony like sipgate, Gizmo or Google Voice. That’s what I was researching for and hit upon this link. As you have said in your July 17th post “As an engineer myself, sometimes knowing why something doesn’t work is almost as good as the thing actually working. But not quite”
Thanks.

By: telesync

telesync — Thu, 22 Oct 2009 11:44:20 +0000

Very informative. I struggled for the exact same reason and was determined to get to the root of problem by calling customer service. You save couple of hours of my time by clarifying this.

By: Trouble ticket 101

Trouble ticket 101 — Fri, 04 Sep 2009 12:28:46 +0000

Apple should provide a fix next iPhone release. No telecom contract guarantees any servie 100%, at best you get 5 nines. Ever try a calling card (any carrier) from Manus Brazil?

The iPhone is nice but isnt a business device…

Its all data packets, forget about DTMF dude.

By: dburden

dburden — Wed, 15 Jul 2009 02:56:48 +0000

Great article. I had an iPhone once and couldn’t work out why the commas didn’t work. Didn’t take the exploration as far as you did. The Blackberry handles things so much better for ‘pause’ and ‘wait’.