RadioCheckk

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Mar 26, 2023
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Hi. Recently discovered that you can change your old Nextel Sprint phones into walkie talkies. Obviously line of sight reception. The talk on the web says you have to have a sim card in the phone in order for "off network" direct connect to work. I picked up a brand new Nextel ic502 phone with a sim card. Unfortunately the screen is stuck in "in progress." Anyone have experience with this and know how to get passed the message and onto the main screen? Other phone I have is up and ready.
 

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BinaryMode

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I'm not familiar with that particular phone, but when I found out this could be done I bought a ton of another model (who's name escapes me) on eBay. Then I created a little project once to see if I could pick anyone up on these by feeding all of the phones to separate USB audio cards and 10 instances of VMware Workstation Player running Windows XP and the old Xcorder VOX software. To my dismay I heard nothing after a month or so of monitoring. LOL

Anyway, try pressing the end key once. I think I have to do that to mine, but it's been a while. Yes, A sim card is needed and I scarfed up a ton on eBay before they were gone.
 

rescuecomm

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I think the SIM card has to be from a service that allowed the direct connect. Seems like maybe boost made you pay extra for it to be enabled?
 

RadioCheckk

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I think the SIM card has to be from a service that allowed the direct connect. Seems like maybe boost made you pay extra for it to be enabled?
Thanks. The Sim card was brand new in the box. Never set up or used. Do you think I need to find one that has been used with direct connect in the past?
 

RadioCheckk

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I'm not familiar with that particular phone, but when I found out this could be done I bought a ton of another model (who's name escapes me) on eBay. Then I created a little project once to see if I could pick anyone up on these by feeding all of the phones to separate USB audio cards and 10 instances of VMware Workstation Player running Windows XP and the old Xcorder VOX software. To my dismay I heard nothing after a month or so of monitoring. LOL

Anyway, try pressing the end key once. I think I have to do that to mine, but it's been a while. Yes, A sim card is needed and I scarfed up a ton on eBay before they were gone.
Thanks. I think it sounds like I need a used Sim card versus a new never been setup before. If it works, ill definitely be able to use these like we did with FRS radios back in the days.
 

MTS2000des

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Direct Talk is a feature of the radio. No iDEN networks are on the air, it's just spread spectrum radio to radio but the handset does have to have a SIM card installed for the device to boot up and be switched to Direct Talk mode.
 

RadioCheckk

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Direct Talk is a feature of the radio. No iDEN networks are on the air, it's just spread spectrum radio to radio but the handset does have to have a SIM card installed for the device to boot up and be switched to Direct Talk mode.
Thank you. I had to figure out that a new "never been set up before" sim card will not boot up on a new phone without being to connect to a tower. The phone wouldn't connect hence stayed in start up. The sim card I got had to be used as in service with DC back in the days. Thanks!
 

BinaryMode

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They do sell Sim card reader/writers on Amazon et al and I'm willing to bet you could find one that's compatible with these Sim cards and copy your used card to the new card.

Apparently, the Sim card is a traditional mini 2FF and something like this may work.

That reader/writer comes with 5 cards. Here's ten of them. YMMV


So, like programming a radio, you read the data from the used card. Save the data - load the data - and write the data to the new card. At least that's how I'd go about it... I'll have to buy one one day and see how it goes.
 
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elc32955

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Old thread but I gave it judicious CPR. Direct Talk is fun. As soon as people hear the old Nextel beeps they start to jump, look around, ask questions like "Hey, when did Nextel come back??!!" For line of sight short-range communications they work fairly well. I used a pair at the 2023 Orlando Hamcation in February and it covered the entire indoor & outdoor swap & exhibit areas without issues, only slight latency as was normal with this service. One problem however Motorola related.... due to the age on the devices the physical components are now starting to degrade - I.E. PTT buttons, up/down buttons, anything made out of the soft plastic used with the side keys. When they get gooey & chunky, your lifetime is limited before they fall completely apart. Since no one is manufacturing replacement key material for these... well... use 'em while they still work!

I had over 300 Nextel units in service when I ran the admin comm systems with my County Government for a good number of years - and we used DT intermittently with good success on event-specific activities. The beauty of using DT now in 2023 is that no one really remembers it anymore and people just don't look for traffic on those frequencies like they used to. Good short-range disaster or SHTF use potential!

One quick story... years back (2010 or so) when Nextel was still active I was vacationing in Las Vegas and had occasion to go up the Stratosphere to the observation level (since I was staying there) and look around on the open-air top deck. Like a good radio enthusiast I brought my i850 with me. Direct Talk was slammed on all 10 channels by none other then casinos, limo services, passenger transit companies, private businesses - I was listening to tons of activity all over Las Vegas. I don't know what usage is like now, but it would still be a heck of a monitoring opportunity!

Eric
 

MaxOffRoadin

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One quick story... years back (2010 or so) when Nextel was still active I was vacationing in Las Vegas and had occasion to go up the Stratosphere to the observation level (since I was staying there) and look around on the open-air top deck. Like a good radio enthusiast I brought my i850 with me. Direct Talk was slammed on all 10 channels by none other then casinos, limo services, passenger transit companies, private businesses - I was listening to tons of activity all over Las Vegas. I don't know what usage is like now, but it would still be a heck of a monitoring opportunity!

Eric

I wonder what they all switched to now, but that must have been cool to hear that traffic in 2010.
Thank you Radiocheckk for this cool new video.

We seriously still need iDEN.

 

mmckenna

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...but that must have been cool to hear that traffic in 2010. We seriously still need iDEN.

Many of us carried NexTel phones for years. They were a novelty at the time, but they did suck.
The original design of the system was two way radio, not phone. As they morphed it into a telephone service, audio quality suffered on the walkie talkie side as they chipped away at the bandwidth. Phone audio quality was not great, but passable.

The small speakers on the handsets didn't help. It was often difficult to understand what others were saying, especially with background noise. Before they tried to compete with the cell phone carriers, the system was a halfway decent two way radio service. But they used something that actually looked like a real two way radio, had a good antenna, big battery and decent audio.
Motorola-r750--r750-plus.jpg

They did away with those and started trying to play cell phone carrier, which generally wrecked the whole idea behind NexTel.

And the coverage was no where near what we have today. Around me, the system suffered from a lot of congestion, especially on the phone side. NexTel spent a lot of money installing bi-directional antenna systems in larger buildings to try and improve coverage, but BDA's create their own issues and they were generally hated by radio guys (as most BDA systems are). I got tired of the Nextel BDA's taking out my trunked system and thoroughly enjoyed going in the wiring closets and yanking the cords on them to shut them down.

It was very annoying, also. Some users always had them cranked up on speaker, and the annoying beep noise every time someone keyed up got old. People blasting the calls got to be old really quick and generally rude NexTel users were made fun of for being totally clueless in public.

It was a good product when they were doing radio service, but once they got the dollar signs in their eyes and tried to make it into a cell phone service, it needed to die.
 
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