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  1. #11
    jp2code
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    Re: Old Phones to Toys

    Quote Originally Posted by efparri View Post
    For one thing a cellular phone is unable to communicate with another cellular phone without an assigned number and the routing which are handled by the wireless carriers. You can only make calls to emergency numbers if the cellular number is inactive. Even then it uses the wireless carriers' networks. Your intentions may be noble but they cannot be implement with the cellular phones as currently configured by all of the wireless carriers operating in the United States. An existing system is the Family Radio Service (FRS) which are low powered handheld radios. They require no license to use and have several channels. That still would not solve problem of discarded cellular phones. Many homeless shelters and centers for abused spouses and children accept cellular phones for distribution to their clients. Often there may be listings in the front of telephone directories of the locations for donating used cellular phones. Most of the carriers will accept them for the same purposes.
    Actually getting some help, here!

    OK, and unlocked phone can be used on another carrier's network. That implies my Motorola phone does not need to communicate with an AT&T tower after it is unlocked.

    As wireless carriers upgrade their systems, they likely sell off their older, outdated equipment.

    For kids, this would be an expensive toy.

    Now imagine a company purchasing old radio equipment with the resources to implement their own SIM card. This company could create its own private phone line system with a range equal to whatever they decided to license with the FCC.

    Expensive? Probably.

    Why would a company choose to do this? Answer: For the same reason a company decides on having a private internal network, using their own routers, network administrators, and IP addresses. For the same reason companies have private land line phone systems.

    Imagine an internal phone system that could connect up to any old phone that would allow all of the features of the old phone with no charges for anything. Text fellow employees, browse the corporate network, send photos of unsafe conditions, etc.


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  2. #12
    efparri
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    Re: Old Phones to Toys

    Locked or unlocked is irrevelant. You are just using the phone on another network. You are still using the service of some carrier to complete your calls. Without the networks' infrastructure, a cellular phone will do nothing involving external communications. Since the carriers had to go through an approval process to get a tower at a particular location, they are not going to abandon the location when they install new equipment. If you look at a cellular site, you will see a bunch of cables coming down from the towers. These connect to the local landline system to take your call back to the carrier's facilities. The carrier then decides how to route the call based upon the number called and its location. The call could be to another subscriber standing next to you. The carrier would then send the call back to the same tower from which you made the call. In other cases, the carrier might route the call to another tower closer to the person called or hand it off to the local or long distance carrier for further routing. None of this could happen if the tower is not interconnected to the local landline carrier. When a person gets a new phone, the number is assigned to the new phone or "ported" to the new carrier. The old phone is just an empty shell. If the phone has Wi-Fi capabilty, it could use Voice over IP to make calls independent of any carrier. Then you have to be close to a wireless access point to which you can join. So would all the other carrierless cellular phones to which you are trying to communicate. The phone would still require a real or virtual phone number. It's hard to get away from a unique identifier for the phone so that the call can be connected.
    Last edited by efparri; 08-16-2010 at 07:22 PM.
    jp2code likes this.
    Earl F. Parrish



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