Results 1 to 7 of 7
Discuss is visual voicemail a form of mms? at the General - Hackint0sh.org; do you guys think visual voicemail is a form of mms. Which may explain why ...
  1. #1
    Advanced Array

    Join Date
    Jul 2007
    Posts
    41
    Post Thanks / Like
    Downloads
    0
    Uploads
    0
    Rep Power
    0

    Default is visual voicemail a form of mms?

    do you guys think visual voicemail is a form of mms. Which may explain why we do not have mms capability because the protocol for mms is being used for vv instead? Maybe apple could not figure out a way to distinguish between a regular mms and vv so because of that we only get vv instead of mms? Anyway just a thought.



  2. #2
    Senior Professional Array

    Join Date
    Jul 2007
    Posts
    445
    Post Thanks / Like
    Downloads
    0
    Uploads
    0
    Rep Power
    30

    Default

    nah, doesnt sound plausible at all imho sorry...

    I think they use regular voicemail signalling and the phone logs onto a server via edge or wifi and downloads the amr files, simple as that...

    the principle is similar to an mms or email, but there isnt "one protocol" that is "used up"

  3. #3
    Senior Professional Array

    Join Date
    Jul 2007
    Posts
    195
    Post Thanks / Like
    Downloads
    0
    Uploads
    0
    Rep Power
    16

    Default

    Actually, there's evidence that the visual voicemail uses some type of iPhone-specific SMS trigger to initiate the retrieval, but it's not MMS per se.

    If you take an iPhone-activated SIM card with a visual voicemail plan and stick it in any other cell phone, you'll get weird-looking SMS message traffic each time you get a voicemail message. They're still SMS messages, but are likely the trigger component to get the iPhone to contact the network and sync the voicemail to the phone.

  4. #4
    Newbie Array

    Join Date
    Aug 2007
    Posts
    7
    Post Thanks / Like
    Downloads
    0
    Uploads
    0
    Rep Power
    0

    Default

    To add to what jhollington said...

    I've been poking around a bit to try and get visual voicemail working with my GoPhone prepaid SIM. Some interesting bits:

    - on a phone that has a regular plan (ie. vvmail enabled) there is a .token file in /private/var/root/Library/Voicemail. That file references your phone no. as well as what appears to be some sort of URL
    Code:
    <string>smpp-vip.allntxacds16.attwireless.net:5400?f=0&amp;v=300&amp;m=<PHONE NO>&amp;p=&amp;t=<PHONE NO>:A:AMS_NB_VIP6:ms03::3343</string>
    - In the /private/var/root/Library/Preferences/SystemConfiguration/preferences.plist there are references to 2 different APNs. The first is the standard wap.cingular one. However, the second is to acds.voicemail.

    I'm still digging around to see what other interesting stuff there is. Hopefully, I'll be able to do a full diff on my phone and a vvmail subscribed phone soon. See if anything more pops up...

  5. #5
    Senior Professional Array

    Join Date
    Aug 2007
    Posts
    310
    Post Thanks / Like
    Downloads
    0
    Uploads
    0
    Rep Power
    24

    Default

    Quote Originally Posted by skwasha View Post
    To add to what jhollington said...

    I've been poking around a bit to try and get visual voicemail working with my GoPhone prepaid SIM. Some interesting bits:

    - on a phone that has a regular plan (ie. vvmail enabled) there is a .token file in /private/var/root/Library/Voicemail. That file references your phone no. as well as what appears to be some sort of URL
    Code:
    <string>smpp-vip.allntxacds16.attwireless.net:5400?f=0&amp;v=300&amp;m=<PHONE NO>&amp;p=&amp;t=<PHONE NO>:A:AMS_NB_VIP6:ms03::3343</string>
    - In the /private/var/root/Library/Preferences/SystemConfiguration/preferences.plist there are references to 2 different APNs. The first is the standard wap.cingular one. However, the second is to acds.voicemail.

    I'm still digging around to see what other interesting stuff there is. Hopefully, I'll be able to do a full diff on my phone and a vvmail subscribed phone soon. See if anything more pops up...
    I think it is hopeless.

    iPhone Plans work in a different voicemail system. Just check your SIM configuratio for call fowarding in he option "Forward when not reachable" or something like that.

    That's going to be the number of the voicemail system.

    The first thing you have to try is using the same number from the iPhone SIM in the GoPhone SIM.

    It won't work, I'm afraid.

    All the signaling done through SMS is just a feature of this particular VoceMail system.



    I have though about a different solution that might work, but it would be useless to do it alone because it costs some money. (For me the biggest advantage of Visual Voice Mail is that you can check your messages for free.)

    If a company did the solution I have in mind, even for a small fee, than it would be usable.

    Later I'll post my thoughts.

    Cheers.


  6. #6
    Newbie Array

    Join Date
    Aug 2007
    Posts
    7
    Post Thanks / Like
    Downloads
    0
    Uploads
    0
    Rep Power
    0

    Default

    I accept that the GoPhone vmail and iPhone plan vmails *may* be on different systems. But I've not seen anything yet that proves that. It's been suggested that I compare the vmail numbers from the different SIMs. Any idea how I'd go about that?

    Additionally, there has to be something on the phone that knows when you hit that vmail button to either dial a number or show a list of messages.... Just haven't figured out what yet.

  7. #7
    Senior Professional Array

    Join Date
    Aug 2007
    Posts
    310
    Post Thanks / Like
    Downloads
    0
    Uploads
    0
    Rep Power
    24

    Default

    Quote Originally Posted by skwasha View Post
    It's been suggested that I compare the vmail numbers from the different SIMs. Any idea how I'd go about that?
    Just put your SIM card inside a phone that lets you edit your callforward settings.

    You may also use keypad codes, but I don't know the codes in this case.

    In the pone that has a menu for editing you call forwarding setting, just ckicl whatever option it gives to check the current status.

    There are abou 4 cases where you can forward calls, I believe. The one named "forward when unreachable" holds in its configuration the phone numebr of the voice mail system. In other words, ATT uses call forwarding to redirect call that are missed to that phone number.

    If you verify both SIM cards, you will notice that the numbers are not the same.




    The solution I was thinking about is to reverse engineer the scheme implemented by sms messages that Visual voice mail uses to signal the VVM process so we can control it. Then, we would replace the VVM number in the SIM configuration by a virtual pone number that we can control, Skype Out for instance, so we have full programable control of the voice mail box.

    An automated system would retrieve the messages from the skype out inbox and use the same signaling process that was reverse engineered from the actual VVM to make the phone download the proper messages from our own server.

    Of course the iphone has to be reconfigured so it accepts our own server, but that configuration is unlikely to be hardcoded. Actually, it might be the SMS signaling messages the ones to provide such information. Also, it may be inside some plist file.

    But even if it is hardcoded, we can always patch the binary so it points to address we want.


    The problem about this solution is that we would probably have to pay for the SMS signaling messages (US Residents do pay to receive SMS messages) and for the Skype Voice Mail box, but we would get the exact same service.


    Cheers.
    Last edited by brasuco; 08-31-2007 at 11:53 PM.

 

 

Similar Threads

  1. Replies: 0
    Last Post: 10-01-2010, 06:40 PM
  2. Visual Voicemail
    By CrazyRach in forum General
    Replies: 3
    Last Post: 11-17-2008, 10:11 PM
  3. [2.0][VoiceMail] Vodafone UK (Visual voicemail button)
    By sic1 in forum Free Toolchain Software (Cydia App's)
    Replies: 7
    Last Post: 07-23-2008, 04:35 AM
  4. Visual Voicemail
    By kevinbr in forum General
    Replies: 0
    Last Post: 12-06-2007, 01:38 AM
  5. Replies: 0
    Last Post: 09-13-2007, 08:53 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Powered by vBulletin®
Copyright © 2014 vBulletin Solutions, Inc. All rights reserved.
Search Engine Friendly URLs by vBSEO
(c) 2006-2012 Hackint0sh.org
All times are GMT +2. The time now is 09:39 AM.
twitter, follow us!