Database Users

Setting up my own Callback-Service

Hi,
at the moment I am using a dualsim adapter to always call/sms/surf at the lowest possible rate.
I've got two contracts that I use on my pda (well, actually I'm using three at all):
o2 Genion Online (Old terms):
19 Cent / Minute in every german Network
100 free SMS, afterwards 19 Cent / SMS
200 MB free Data Volume
Forward calls to phones in o2 Network free of charge
debitel crash5 (in o2 Network):
5 Cent (!) / Minute in every german Network
20 Cent / SMS
No Data Option available
o2 Genion Card (Old terms):
Reachable through landline telephone number when in homezone
Forward calls to phones in o2 Network free of charge
I listed only the facts that are important for my intention.
My current configuration is:
An old C25 (contract 3) is deposed at home and thus is available under the landline telephone number all the time. Every incoming call is forwarded to contract 1 free of charge - So I'm reachable under a landline telephone number wherever I am in Germany.
Contract 1 is only used for GPRS and SMS - I'm switching to the card when I need it. If the card is unused, every call is forwarded to contract 2 free of charge.
Whenever I don't activly use a data connection contract 2 is active, because then I can be called under every number from each contract without a charge for me and can make outgoing calls at the lowest cost.
I'm not completely happy with this configuration as I can't use direct-push, a stock-ticker or messanger in background, cause there's no Data Option available for contract 2. I own a currently unused TyTN with a broken screen (Wrong colors and sometimes it doesn't react on input) so I thought about how to combine all the advantages of the contracts with it's help and ended up with two possibilities:
Active card in my pda is contract 1. The TyTN (contract 2) is deposed at home and forwards sms to contract 1 (There are plenty of tools available). Somehow it is integrated as a phone in an Asterisk running on my Router at home (FritzBox). Asterisk then forwards incoming GSM calls over VoIP to the landline number of contract 3. To make use of contract 2's cheap calling rates Asterisk is additionally configured as a callback service, that calls me back on the landline phonenumber over VoIP and establishes the second call over the TyTN when calling a mobile phone (and over VoIP if calling a landline number) - using a landline VoIP-Flat that would result in free landline calls and 5 Cent/Min mobile calls.
My problem here is that Asterisk doesn't support GSM-Modems in it's base features. How do I integrate the TyTN as a regular phone in Asterisk so that it can be used for incoming and outgoing calls by Asterisk?
Active card in my pda is contract 1. The TyTN (contract 2) is deposed at home and forwards sms to contract 1 (There are plenty of tools available). Set up an VoIP-Client on the TyTN and find an app that's capable of forwarding incoming calls from every number except contract 1's over VoIP to the landline number of contract 3 resulting in a free of charge forward of calls to my pda. If the calling number is contract 1's: hang up, call me back on the landline number through VoIP and initiate the second call over GSM -> same costs for callback as possibility one, except for landline calls that also costs 5 Cent/Min.
Do you know an app that's capable of such functions?
(If the app could also use VoIP for the second call when the destination is a landline number that would be great)
On my pda I would use Callback-Pocket-PC to not even worry about how to initiate calls.
Thank you for reading my long text. I hope I made clear enough what I am trying to do.
Do you have any idea on how to realize either possibility 1 or 2? Is there perhaps another way that I didn't thought of?
Thanks in advance!

cdma call routing - cloned phones

Hi,
Could someone provide me pointers with how actually a incoming call is routed on the cdma network.
What I want to figure out is issue with cloned phones.
Now when I have my cloned phones connected to the same tower, they both ring when an incoming call comes in?
But when they are connected to different towers only one rings, what determines which one does?
Is it possible to have only one of them ring i.e. the other ignores any incoming calls?
Maybe have the secondary phone not show itself on the network, unless it needs to make a call (voice or data)?
What about call waiting? When another incoming calls comes in when one is in session, would prefrentially go the the phone which is active or could it go to either?
Has anyone any experience of extensive testing of having two (or more) phones on a network?
- Jack

Incoming Phone during data connection

With my older phone, if I have a GPRS data connection, incoming voice calls will be rejected (busy). I was told it is the same with all phones.
Can HD2 make or accept a voice phone call when it has a GRPS connection? Or an HSPA connect? With the My Location, Weather, and Direct Push, I can neve tell when my phone has a data connection. Does it mean I may be missing calls all the time?

I have no problems with my telco. They will "downgrade" my data connection whenever a call is coming thru.

Nope - works fine for me. Will be using MSN and then a phone call will over ride it

alex fung said:
I was told it is the same with all phones.
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Somebody didn't know what they were talking about! You've been misinformed mate

alex fung said:
With my older phone, if I have a GPRS data connection, incoming voice calls will be rejected (busy). I was told it is the same with all phones.
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what phone would do that? You wouldn't happen to be with Verizon before, would you? My gf has a blackberry on verizon and whenever she's using the net incoming call would be rejected. I don't know any gsm phone would do that. I've had 5-6 GSM phones and they would allow incoming call and suspend your current web until the call ended.

Well, voice calls are made on a certain frequencies and data connections are made on others.
Ex: in my country the data connection is on the 1900/2100 freq, while the voice calls are on the rest.
So it should never be a problem. I believe its also the ability of the phone to use different freq for different tasks.

Thanks. I can now use the data connections without worry

Why not you try yourself. COnnect to data constantly and make a call to your number. What will happen...?

3G and GPRS/Edge won't block calls. But you can still use old fashion data-call. While I doubt any provider would provide data connectivity this way, I can't rule it out.

Using google voice for calls and texts

I am thinking about just keeping the data plan on tmobile and canceling the voice plan and text plan and use gv to make calls and texts. What you guys think?

If someone texts you, they will charge you. Get unlimited data and text, I think that's better. I wouldnt just rely on data. No data means your phone is an expensive brick.

leyvatron said:
If someone texts you, they will charge you. Get unlimited data and text, I think that's better. I wouldnt just rely on data. No data means your phone is an expensive brick.
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i said keeping the data..and just the data no voice service. is that possible?

You can I am thinking about this myself you would need to set up a SIP account and something at pbx.org

Google Voice is not a VOIP service. Google Voice forwards calls dialed to your GV number to some other phone number(s), be they cell, land or sip/voip lines.
Your solution would only work if you have an active and functional sip/voip connection up and running on your phone full time.
GV text messages will work on data only accounts, though.

distortedloop said:
Google Voice is not a VOIP service. Google Voice forwards calls dialed to your GV number to some other phone number(s), be they cell, land or sip/voip lines.
Your solution would only work if you have an active and functional sip/voip connection up and running on your phone full time.
GV text messages will work on data only accounts, though.
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i have vonage for home phone service is that good?

2012iawait said:
i have vonage for home phone service is that good?
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No, that won't work. Your problem is that the phone has to have some way for the Google Voice server to send it a phone call. This is done by sending it to a phone number (or a gmail web account on a laptop/sesktop with the appropriate browser plug-in).
The phone number can be any phone number (land, cell, voip, sip, whatever).
If you cancel your voice service on the phone, the only way GV has to contact the phone is the data connection, which means you'll need a working SIP account.
The Nexus S does support SIP calling out of the box (but I'm not sure if it's over WiFi only). The setup for it is done in Settings, Call settings, Accounts. You'll need a server and account info. Then tell Google Voice to forward calls to that account, and they should forward to the phone that way (in theory).
Note the warning that having the phone receive internet calls (SIP) comes with a warning that it "reduces battery life." The reason for this is that to ensure you don't miss a call, a full time data connection will have to be maintained; this will be a serious battery drain on the phone I believe.
The point I was trying to make was that Google Voice is not really a VOIP solution the way traditional VOIP services are. It's more like one than it used to be now that you can actually make and receive calls from a web browser, but that won't work on the cell phone, especially for the incoming.
I may try setting up a SIP account on my phone to test this out sometime this week; but frankly, T-Mobile's 3G service is so spotty, especially inside buildings, that it would never serve as an acceptable voice service replacement. YMMV.

I use Google Voice with a data plan but no text plan. I do have a voice plan. You need to give out your GV number to everyone for texts, and then you can block texts through T-mobile and not worry about charges. GV doesn't support picture messaging and if someone sends you a picture message at your GV number it just disappears into the aether and doesn't notify you or the other person that it wasn't received.
There are ways of using GV without paying anything (detailed on this forum). Using a gizmo5 account allows for free incoming calls, and using an app to have your outgoing calls "call you back" on your gizmo5 account allows for free outgoing calls.
I have to disagree about the battery life and GV not being a true VOIP solution. With the addition of a SIP carrier of some kind (preferably gizmo5 for free calls) then it works well. Battery life is fine having my phone constantly registered with gizmo5 servers over data to accept incoming VOIP calls. No need to use a web browser.
But I have to agree with distortedloop about needing a high quality data connection. Unless you spend all your time near a 3g tower you're going to find plenty of times when you have no 3g data and therefore no good calling. You don't want to use VOIP over EDGE. It is nice that when I'm at home or office where I have my own reliable WIFI that I can use my cell without using any minutes. But I wouldn't trust it to be available when your car breaks down on some rural road.

Belarios said:
I use Google Voice with a data plan but no text plan. I do have a voice plan. You need to give out your GV number to everyone for texts, and then you can block texts through T-mobile and not worry about charges. GV doesn't support picture messaging and if someone sends you a picture message at your GV number it just disappears into the aether and doesn't notify you or the other person that it wasn't received.
There are ways of using GV without paying anything (detailed on this forum). Using a gizmo5 account allows for free incoming calls, and using an app to have your outgoing calls "call you back" on your gizmo5 account allows for free outgoing calls.
I have to disagree about the battery life and GV not being a true VOIP solution. With the addition of a SIP carrier of some kind (preferably gizmo5 for free calls) then it works well. Battery life is fine having my phone constantly registered with gizmo5 servers over data to accept incoming VOIP calls. No need to use a web browser.
But I have to agree with distortedloop about needing a high quality data connection. Unless you spend all your time near a 3g tower you're going to find plenty of times when you have no 3g data and therefore no good calling. You don't want to use VOIP over EDGE. It is nice that when I'm at home or office where I have my own reliable WIFI that I can use my cell without using any minutes. But I wouldn't trust it to be available when your car breaks down on some rural road.
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I agree with this.
GV is something I wouldn't rely on 100%.
I have the cheapest voice plan with unlimited data and text. When I make calls, I use GV and when I receive I have my voice. That works for me and I pay 67 a month.

not getting call from skype

phone unlocked to be used for traveling
current location: china
current mobile carrier: china mobile
no problem getting calls from local landline & cell phone
no problem getting calls from internation if using phone card
skype call cannot come through, skype shows "no answer" after 3 to 5 rings, phone never rang
call china mobile customer service and they said it's phone setting that's blocking the call from skype but i have no idea where to look @, i didn't set any call barring