Reading Sunday's newspaper and clipping the ONE CENT free phone coupon to use at your local neighborhood cellular store can be a terrible mistake. It is by far the worst decision if you ever want to get on a plane and travel overseas. You will end up paying hundreds of dollars in roaming fees to your carrier when you could be receiving all of your calls for free with other types of mobiles (later explained on this article). I know what you're thinking..

Yes, all our GSM mobile phones are FACTORY unlocked - they will work with any GSM SIM card from any country on earth - so you needn't be tied into any specific carrier or contract. Every time you change the SIM CARD the GSM phone becomes whatever the new SIM CARD is. I.E. a new telephone number, memory for credit, the ability to work in the new country etc.

Yes. The compatibility with other networks depends on your GSM phone capabilities and not the SIM card. You will need to have a dual band or Tri band phone.

In the GSM market, network operators, who generally sell phones at a lower price than cost in order to attract customers, try to stop them from leaving for another company by locking the phone for exclusive activation on their network. As a result, many cell phone owners are stuck with a phone they paid for but that can't be used on another network.

SIM Free means you get the phone without the line (or the GSM chip / SIM, that goes with it). It also means that the phone is not locked to any particular network. You need to check the frequency of your network is available on the phone you want to buy.

Send an email requesting what you would like done and the domain in question, from an authorized address, to info@pebblehaven.com.

Locked audio is "audio done right": the audio sample clock (the digital time reference used in the sampling process) is precisely locked to the video sample clock such that there is exactly the same number of audio samples recorded per "audio frame" of video (not all TV formats and sound sample rates have a neat integer relationship between audio samples and frames, so an "audio frame" is my term [similar to a "color frame"] for the number of video frames it takes for audio and video to match up.

It's best not to intermix any variations of digital audio on the same tape. While VTRs seem to cope with sudden changes in sampling rate, bit depth, and locked/unlocked status, often you'll get a brief moment of silence at the transition between audio types as the internal workings of the audio chain readjust themselves to the new audio type.

If you entered the wrong password three times in a row, your mailbox is automatically locked. Call ITCom Customer Service (763-2000) or 4-Help (764-4357) or send e-mail to itcom.csr@umich.edu. If you inadvertently entered the wrong password but you still know what it is, the consultant will simply unlock your mailbox. If you forgot your password, you will be given a new one. See the next item. Call ITCom Customer Service (763-2000) or 4-Help (764-4357) or send e-mail to itcom.csr@umich.edu.

GeMobile SIM card doesnt have an uptime (expiry date) and it wont be locked, even if its out of credit. In case of having zero balance you can receive calls from where the calls are free of charge.

You can either ask your mobile phone supplier or insert your UM+ SIM card into your phone and switch it on. If a normal screen is displayed your phone is unlocked. If the screen displays an error message such as "Enter Subsidy Code" or "Phone Restricted" or asks to enter a code other than the PIN code your phone is probably SIM locked.

Yes, USIMcommander incorporates a "2GMode" command, allowing you to communicate with GSM SIM cards. If you have been using Quantaq's SIMcommander product, please contact us to receive an upgrade to USIMcommander.

Simply insert a SIM card from a different network operator than the one currently being used into the phone. If the phone works it is unlocked.

Techoni sells mobile phones and PDAs that will work on any compatible network. You can use any standard sim card with a phone purchased from us. When you purchase a phone from Techoni, you are purchasing an outright phone. You are not locked into any contracts with any mobile phone carrier. You have the choice on which carrier and service you use.

This means that you have a SIM locked phone and will have to go to your previous carrier to obtain the unlock code.

Accounts can only be unlocked or reset by your agency security administrator. DIS cannot perform unlocks and resets on normal user accounts. If you are an agency security administrator, you can submit an account update form to request changes to your administrator account: http://techmall.dis.wa.gov/services/sftacctupdtfm.doc

When a file is played three times and it locks on a given PC, it's permanently locked (unplayable) on that PC until it's purchased using the Weed software. Once you buy it, it unlocks and plays forever. Downloading a new version of the Weed file won't unlock it.

The steering on a towed car should always be unlocked while towing. The key should be in the unlocked position in your ignition. On most vehicles the unlocked position is one "click" ahead of the lock position. On some cars this is also the accessory position so you may have to make sure all your accessories, such as your radio and heater fan, are turned off while you are towing.

The FileMaker Pro databases included with the JPT disk image are not locked. They will only appear locked if you open them from the locked JPT disk image. Before opening the example databases, copy them to your hard drive and then open. You will now be able to edit the embedded scripts and include the functionality of dialing JPT from your own FileMaker Pro databases. Also, there are two different example databases with slightly different scripts to support FileMaker Pro 7 and earlier versions.

To protect your accounts, your access will be locked after 3 unsuccessful attempts. You can have it unlocked by calling our Customer Care Consultant at 03-7711 8888 or by visiting any of our branches.

iii.) Most of the SIM cards support the SMS, but some telecom services like "pre-paid service" might disable the Short-Message Services iv.) The GSM Modem won't recognize the SIM Card if the SIM card had been set a PIN code.(please delete the PIN code by using any type of GSM cellphone)

Yes, if your phone is a GSM phone with frequency 800/1900/1800 that will allow you to use your phone overseas you definitely can rent just a sim card from us, and vice-versa: If you have the SIM and your GSM phone does not work overseas, you can rent just the phone from us.

No. You can use your SIM card in any GSM handset purchased from Cable & Wireless Grenada or one of our authorized dealers. Mobile carriers around the world utilize handsets that operate on different frequencies that may not be able to work on our network. Many operators lock handsets to their network because of the discounted prices being offered.

examine if the PIN on SIM card is disabled. If not then the same value has to be set in System > System settings > PIN code field. This code has to be the same on all the SIM cards in 2N StarGate check the GSM signal level. The recommended minimum value is approximately - 80 dB. If it is less then change the antenna position the GSM cell could be overloaded because of heavy traffic. You can try to direct the antenna into different position.

It is a rare event that one of our cell phones wouldn't work and extremely rare for a SIM card not to be working. We personally test all our phones and other equipment prior to sending them out to ensure quality service and no defects. Statistically, less than 1% of all GSM cellular phones are defective and less than 1 in 10,000 SIM cards are defective. We suggest you double-check with the manual to make sure you are using the handset in the proper manner, and then try again.

Thuraya satellite phone charges you monthly for your Thuraya SIM card only. If you use the service with your GSM SIM card no subscription charges are applied.