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ETSI and 3rd Generation Partnership Project (3GPP) standards, such as GSM and LTE, define supplementary service codes that make it possible to query and set certain service parameters (e.g., call forwarding) directly from mobile devices.
MDCs are also known in carrier terminology as "abbreviated dialing codes" (ADCs). Mobile dial codes are dialed just like a regular telephone number. The caller can be presented with any one of a variety of responses that an advertiser defines: a voice or IVR call, a text message, a video or audio clip, a mobile coupon, game or an application.
SMS messages can be sent to 111 from registered mobile phones. Traffic – *555 (mobile phones only). 112 and 911 redirect to 111 on mobile phones. [116] Dialing 000 and 999 plays a pre-recorded message advising the caller to call 111. Crime Stoppers – 0800 555 111. Police non-emergency – 105. Niue (+683) 4333 (+683) 4202 (+683) 4133 [111]
SOS mode also shares your location with the emergency service. You can also create emergency contacts that will receive a text message with your location after your emergency call ends, and which ...
These tips can help you send a message or make a call when phone ... talk second” approach to keep phone lines open for emergency calls. Plus, sending a text uses less battery than a phone call ...
USSD (Unstructured Supplementary Service Data) codes [1] are mobile dial codes that can be used for communicating with the service provider's computers (i.e. for WAP browsing, prepaid callback service, mobile-money services, location-based content services, menu-based information services, and as part of configuring the phone on the network).
However, if you get a call from a phone number or area code you don’t know, it’s likely best to avoid picking up the call and research the following before you call back:
The actual number is not even transmitted into the network, but the network redirects the emergency call to the local emergency desk. Most GSM mobile phones can dial emergency numbers even when the phone keyboard is locked, the phone is without a SIM card, emergency number is entered instead of the PIN or there is not a network signal (busy ...