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T-Mobile has also configured their IPv6 servers in such a way that a single user may have their IP address change each time they restart their phone. These factors all make it nearly impossible for us to block a single vandal without causing some " collateral damage " by inadvertently range-blocking innocent users.
Another approach to reducing SMS spam that is offered by some carriers involves creating an alias address rather than using the cell phone's number as a text message address. Only messages sent to the alias are delivered; messages sent to the phone's number are discarded. A New York Times article provided detailed information on this in 2008. [27]
SMS spoofing is a technology which uses the short message service (SMS), available on most mobile phones and personal digital assistants, to set who the message appears to come from by replacing the originating mobile number (Sender ID) with alphanumeric text. Spoofing has both legitimate uses (setting the company name from which the message is ...
Some mobile phone models have problems in managing binary SMS messages. By sending an ill-formed block, it is possible to cause the phone to restart, leading to the denial-of-service attacks. If a user with a Siemens S55 received a text message containing a Chinese character, it would lead to a denial of service. [17]
The following was T-Mobile's response regarding data retention: T-Mobile US retains customers' historic cell site information and cell tower dump information (180 days); call details records (7–10 years); text message content, data requests, and geo-location data not stored; voicemail content (up to 21 days); subscriber information (6 years ...
An SMS message written on a Motorola Razr V3. Short Message Service, commonly abbreviated as SMS, is a text messaging service component of most telephone, Internet and mobile device systems. It uses standardized communication protocols that let mobile phones exchange short text messages, typically transmitted over cellular networks.
Example of a mobile phone jammer, produced by Jammerspro. A mobile phone jammer or blocker is a device which deliberately transmits signals on the same radio frequencies as mobile phones, disrupting the communication between the phone and the cell-phone base station, effectively disabling mobile phones within the range of the jammer, preventing them from receiving signals and from transmitting ...
Cellphone surveillance (also known as cellphone spying) may involve tracking, bugging, monitoring, eavesdropping, and recording conversations and text messages on mobile phones. [1] It also encompasses the monitoring of people's movements, which can be tracked using mobile phone signals when phones are turned on. [2]