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Difference Between GSM and CDMA network

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<div dir="ltr" style="text-align: left;"><img alt="http://www.lechechiapas.com/wp-content/uploads/2011/10/CDMA-Vs-GSM-Technology.jpg" height="200" src="http://www.lechechiapas.com/wp-content/uploads/2011/10/CDMA-Vs-GSM-Technology.jpg" style="background-color: white; border-color: rgb(238, 238, 238); border-style: solid; border-width: 0px; color: #333333; font-family: Arial,serif; font-size: 14px; line-height: 22px; text-align: center;" width="400" /><br />
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<div style="background-color: white; color: #333333; font-family: Arial, serif; font-size: 14px; line-height: 22px; text-align: center;"><b><span style="font-size: x-small;">GSM</span></b></div><b style="background-color: white; color: #333333; font-family: Arial, serif; font-size: 14px; line-height: 22px;"><br />
</b><br style="background-color: white; color: #333333; font-family: Arial, serif; font-size: 14px; line-height: 22px;" /><b style="background-color: white; color: #333333; font-family: Arial, serif; font-size: 14px; line-height: 22px;">GSM   stands for Global System for Mobile Communications. It came in the   market in the mid of 1980’s and generally operates in the 900 and   1800-MHz bands. In U.S, it is operated on 1900-MHz band. The users of   GSM use Subscriber Identity Module (SIM) cards for the connection with   the service provider. SIM cards are small in size, with removable   memories and hold a lot of data and numbers of identification which are   required to access any wireless service provider. SIM card is bound  with  the network, instead of the handset. It can be easily interchanged  with  another GSM phone by just swapping it out. GSM works on the basis  of  Time division multiple access (TDMA). TDMA allots a specific time  period  on a specific frequency to the GSM. GSM network connections are   considered better secured than CDMA. GSM divides its frequency bands   into many channels, so that a large number of users can make a call   through a single tower. GSM covers up to 82% of the global market.</b><br style="background-color: white; color: #333333; font-family: Arial, serif; font-size: 14px; line-height: 22px;" /><b style="background-color: white; color: #333333; font-family: Arial, serif; font-size: 14px; line-height: 22px;"><br />
</b><br style="background-color: white; color: #333333; font-family: Arial, serif; font-size: 14px; line-height: 22px;" /><div style="background-color: white; color: red; font-family: Arial, serif; font-size: 14px; line-height: 22px;"><b>Advantages</b></div><br style="background-color: white; color: #333333; font-family: Arial, serif; font-size: 14px; line-height: 22px;" /><ul style="background-color: white; color: #333333; font-family: Arial, serif; font-size: 14px; line-height: 22px;"><li><b>There are numerous handsets and service providers available in the market.</b></li>
<li><b>They come with a variety of plans with cheaper call rates, free messaging facility, limited free calls and so on.</b></li>
<li><b>The quality of call in GSM is better and also better secured than CDMA.</b></li>
<li><b>A number of value-added services such as GPRS, are making GSM a perfect choice.</b></li>
<li><b>The consumption of power is less in GSM mobiles.</b></li>
<li><b>With the tri- band GSM, one can use the phone anywhere around the world.</b></li>
</ul><b style="background-color: white; color: #333333; font-family: Arial, serif; font-size: 14px; line-height: 22px;"><br />
</b><br style="background-color: white; color: #333333; font-family: Arial, serif; font-size: 14px; line-height: 22px;" /><div style="background-color: white; color: red; font-family: Arial, serif; font-size: 14px; line-height: 22px;"><b>Disadvantages</b></div><br style="background-color: white; color: #333333; font-family: Arial, serif; font-size: 14px; line-height: 22px;" /><ul style="background-color: white; color: #333333; font-family: Arial, serif; font-size: 14px; line-height: 22px;"><li><b>The per-unit charge on roaming calls is higher in GSM than CDMA.</b></li>
<li><b>Calls made through GSM mobiles can be tampered.</b></li>
<li><b>If the SIM gets lost, one can lose all the data, if the same is not saved in the phone.</b></li>
</ul><b style="background-color: white; color: #333333; font-family: Arial, serif; font-size: 14px; line-height: 22px;"><br />
</b><br style="background-color: white; color: #333333; font-family: Arial, serif; font-size: 14px; line-height: 22px;" /><div style="background-color: white; color: #333333; font-family: Arial, serif; font-size: 14px; line-height: 22px; text-align: center;"><b><span style="font-size: x-small;">CDMA</span></b></div><div style="background-color: white; color: #333333; font-family: Arial, serif; font-size: 14px; line-height: 22px; text-align: center;"><b><span style="font-size: x-small;"> </span></b></div><b style="background-color: white; color: #333333; font-family: Arial, serif; font-size: 14px; line-height: 22px;">CDMA   stands for Code Division Multiple Access technology, which is   completely distinct from GSM system. CDMA is used as the second and   third generations of the wireless communication. CDMA system operates on   800-MHz and 1900 MHz bands of frequency. In this system, voice signals   are digitized over one another and the output is spread out over the   whole frequency bandwidth with the sequence codes. The data is sent in   small packets over a specific number of the discrete frequencies, which   can be used anytime within the specified range. Thus, it is a form of   spread spectrum. It does not use the SIM card, rather gives a specific   serial number to the handsets. CDMA systems use multiple access schemes,   which are pioneered by QUALCOMM, etc.</b><br style="background-color: white; color: #333333; font-family: Arial, serif; font-size: 14px; line-height: 22px;" /><b style="background-color: white; color: #333333; font-family: Arial, serif; font-size: 14px; line-height: 22px;"><br />
</b><br style="background-color: white; color: #333333; font-family: Arial, serif; font-size: 14px; line-height: 22px;" /><div style="background-color: white; color: red; font-family: Arial, serif; font-size: 14px; line-height: 22px;"><b>Advantages</b></div><br style="background-color: white; color: #333333; font-family: Arial, serif; font-size: 14px; line-height: 22px;" /><ul style="background-color: white; color: #333333; font-family: Arial, serif; font-size: 14px; line-height: 22px;"><li><b>The call costs are cheaper than GSM.</b></li>
<li><b>Call quality is better than GSM system.</b></li>
<li><b>The phone calls are more secured because of the spread spectrum.</b></li>
</ul><b style="background-color: white; color: #333333; font-family: Arial, serif; font-size: 14px; line-height: 22px;"><br />
</b><br style="background-color: white; color: #333333; font-family: Arial, serif; font-size: 14px; line-height: 22px;" /><div style="background-color: white; color: red; font-family: Arial, serif; font-size: 14px; line-height: 22px;"><b>Disadvantages</b></div><br style="background-color: white; color: #333333; font-family: Arial, serif; font-size: 14px; line-height: 22px;" /><ul style="background-color: white; color: #333333; font-family: Arial, serif; font-size: 14px; line-height: 22px;"><li><b>Very few number of CDMA handsets are available in the market.</b></li>
<li><b>It has only a few service providers, which can be uncomfortable for the customers in case of low service level.</b></li>
<li><b>If you want to upgrade the CDMA phone carrier, you will have to   deactivate the present one and activate the new. In doing so, the phone   with the initial carrier becomes useless.</b></li>
<li><b>If you are frequent overseas traveler, the CDMA coverage is sure to make you upset.</b></li>
</ul></div></div>

Difference Between GSM and CDMA network

GSM GSM stands for Global System for Mobile Communications. It came in the market in the mid of 1980’s and generally operates in the...

Vodafone Faces Delay in Securing Permission for Essar Group Buyout

<b>India's Foreign Investment Promotion Board (FIPB) has refused to grant  approval to Vodafone's recent decision to buy out part of the Essar's Group  holdings in their joint venture.</b><br />
<b>Vodafone had offered US$1.26 billion for the 11% stake in </b><br />
<b>Although Vodafone has outlined how it will remain below the 74% limit for  foreign shareholders, any transaction where a foreign company has over 49% of an  Indian company requires permission from the FIPB. That regulator has now said  that it is waiting for comments from the Home Ministry and Telecom Ministry.</b><br />
<div class="body_text"><b>The specific request being considered by the FIPB was for Mauritius based  Prime Metals, an indirect subsidiary of Vodafone International to buy a 5.48%  stake in Vodafone-Essar owned by ETHL Communications Holdings.</b></div><div class="body_text"><b>The deal will also need to get clearance from Cabinet Committee on Economic  Affairs (CCEA).</b></div><div class="body_text"><b>Following regulatory approval and subsequent closing of these transactions,  Vodafone will own 74% of VEL directly via its subsidiaries. The remaining 26% of  VEL will be majority-owned and controlled by Indian shareholders.</b></div>

Vodafone Faces Delay in Securing Permission for Essar Group Buyout

India's Foreign Investment Promotion Board (FIPB) has refused to grant approval to Vodafone's recent decision to buy out part of th...

Vodafone Latest NEWS Tollyandhra.com

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</ul><b>Away from your TV, radio or newspaper? You can still get your dose  of news, with your Vodafone mobile phone. So you can stay in the know  from anytime, anywhere. You can get news updates by: </b><br />
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Vodafone Latest NEWS Tollyandhra.com

News Back to News & Finance http://www.vodafone.in/ Away from your TV, radio or newspaper? You can still get your dose ...

News about Mobile Number Portability (MNP)

<div dir="ltr" style="text-align: left;" trbidi="on"><b>Much awaited Mobile Number portability or MNP (in short) is just  about to launch next year in the first month for Category ‘A’ service  areas. The rest of the country shall have to wait till March, 2011 to  use the facility.</b><br />
<div style="text-align: center;"><b><img alt="m1" class="aligncenter" src="http://www.watblog.com/wp-content/uploads/2008/11/mobile-number-portability.jpg" /></b></div><div style="text-align: center;"><b><img alt="m2" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh2Yngujp8wEQM7MBdox17rYgmPA_erM04VevQNaif1n-TEObN-XETy3ZTYdor7wXkDxru3cjWVD1bC_9Txy7Kl3khrcktKJUWfo0dNW5iEukwmkHhuyJXU_HG0hnqdl6HhGBcErRpwsUs/s1600/Mobile+number+portability.jpg" /><img alt="3" class="aligncenter" src="http://cdn.trak.in/wp-content/uploads/2010/08/MNPmobilenumberportability.jpg" /></b></div><b>Generally, a huge number of customers are expecting to change their  service providers as soon as MNP is launched in the various telecom  circles, however most of them are still un-aware on the ‘What’ and ‘How’  of the process. Lets see what our inside story has to tell you on this:</b><br />
<b><strong>Cost </strong>– If you are looking forward to change your  operator, you just need to pay only up to Rs. 19 as Porting charges (as  per TRAI), however the exact fee shall be decided by the operators  themselves. The porting charge is non-refundable even if you want to  cancel your request for MNP, which is possible within 24 hours of the  request.</b><br />
<b><strong>No Dues</strong> – There should be no bills pending with your existing operator if you want to migrate.</b><br />
<b><strong>Time</strong> – It shall take a maximum of 4 days for all  telecom circles except the states of J&K, Assam and North East where  it will take a maximum of 12 days. The number, during this process,  shall be disconnected for a maximum time of 2 hours.</b><br />
<b><strong>Minimum usage</strong> – A porting request can be made only  after 90 days from the date of activation of a connection, or after 90  days from the date of previous porting, in case of a ported number.</b><br />
<b>Instant Reply – A UPC (Unique Porting Code) shall be sent to the  mobile phone after a SMS is sent to 1900 (regular SMS tariff applies).</b><br />
<b>MNP has been successfully implemented in Haryana & Karnataka  Telecom circles, however the rest of India awaits the new bride with  joy.</b></div>

News about Mobile Number Portability (MNP)

Much awaited Mobile Number portability or MNP (in short) is just about to launch next year in the first month for Category ‘A’ service are...