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airtel ussd codes list

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Airtel USSD codes list for balance, data, etc. Airtel is one of India’s biggest GSM mobile network operators. Like any other mobile operator, Airtel has a list of USSD codes…

Telecom

SGSN

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What is SGSN? SGSN’s full form is Serving GPRS Support Node. A mobile phone connects to SGSN for the internet while roaming. VLR (for voice) and SGSN for data keep…

Telecom

IMSI

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What is an IMSI Number? Format and IMSI Vs IMEI? The International Mobile Subscriber Identity(IMSI) is an identity of a subscriber in the GSM Telecom Network. The full form says…

Telecom

TMSI

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What is TMSI in Telecom? It stands for a temporary mobile subscriber identity. At the same time, the permanent identity is IMSI. To hide the actual identity and secure the…

Telecom

GMSC

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 GMSC or Gateway Mobile Switching Centre When a subscriber dials the number of another mobile subscriber, based on country code and mobile network code (first few digits), the call reaches…

Telecom

WHAT IS WIFI CALLING

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What is wifi calling (VoWIFI)? How to Enable and Disable in a Phone? Wifi Calling is also known as Voice Over Wifi (VoWifi ) network. The feature transforms a wireless…

Telecom

ICCID

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What is the ICCID Number? How to get it on Android and iPhone? This is a globally unique numeric identifier for a physical SIM, with a maximum value of 22…

Telecom

CONNECT ON SS7 OR SIGTRAN

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Connect on SS7 or Sigtran. SS7 is a legacy signaling network for telephony. Nowadays, new service providers are coming into the market. Telecom mobile operators have plenty of network resources…

Telecom

LTE EPC

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What is LTE-EPC and its network nodes? The Evolved Packet Core, or EPC, is the LTE or 4G core network. The EPC network is specified in 3GPP release 8. LTE…

Telecom

GGSN

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GGSN – What GGSN stands for GGSN full form is GPRS support Node. A mobile network operator deploys GGSN, in-home PLMN, as a gateway to provide internet service to a…

Telecom

HLR

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What is HLR in GSM? When a new sim card is purchased from the GSM network operator, the wireless carrier creates a new sim entry in a central database. The…

Telecom

msisdn

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What is MSISDN Number, and how to get it from the SIM? In simple terms, it is your phone number that other mobile subscribers use to call you or send…

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