We suggest the customer choose cell phone jammer

We suggest the customer choose cell phone jammer
But must use the phone built-in function, and require operators to support this function, the ordinary cell phone can not use the PTT function. PTT technology is IP-based network, the cost is far lower than the ordinary mobile voice services. It uses VoIP technology to achieve the "point-to-point and point-to-multipoint" voice communications business. PTT service using half-duplex communication at the same time only one person can speak, so that in the group exchange, the caller can press a button to a person or a group of people to initiate a call without dialing or waiting for the other hook, telephone immediately connected, and the rapid establishment of a call group. As a new type of mobile communication services. System of completely personal responsibility is implemented to  cell phone jammer .
Potential revenue and profit growth point, being the communications sector, including operators and equipment providers, including great concern. The traditional call process, both sides of the phone via the full duplex voice channels to multiple base stations and even the central mobile switching between mobile phones and base stations, the uplink channel and downlink channel. Party speech, the phone will simulate the sound information by a certain encoding rules modulated into a digital signal, and divided into a month of voice data packets, then occupied by the uplink voice channel sent the nearest base station, base station then forwards these packets, the last through the downlink voice The channel is sent to the recipient, the recipient mobile phone with the same coding rules to demodulate the voice packets. 24-hour after service hotline support and network support are available to  cell phone jammer .
In a certain order and then assembled into an analog signal of voice, sound to the speakers. This completes the transmission of voice. This process is a two-way, both sides you can listen and speak through the uplink voice channel transmitter, downlink voice channels to close, then, so that is a full-duplex. PTT call is different. Party speech, the phone is also the analog voice information into a digital signal modulated by the encoding rules, and is divided into a voice packet (the packet with the traditional call the same packet), and then the phone and then the voice packets package to the GRPS data package, GPRS data uplink channel is sent to the nearest base station cluster transfer server .. cell phone jammer adopts the special material for heat dissipation
MP3 is a sound compression technology developed by the ISO / MPEG speech coding standards (AudioCoding Standard), the original audio signal through a special data compression algorithms. As a ringtone, the biggest advantage of MP3 voice files can be compressed to the tenth or twelfth. One minute of sound files stored in MP3 format only about 1M. MP3 sound quality and CD there are still gaps, although the sound MP3 music with near-CD quality sound can be compared to the challenge of CD-quality WAV or rival. Mobile Security introduces (PIN, PUK).
Do not need 12 hours but is also a constant current constant voltage charging characteristics of lithium-ion battery without 12 hours of deep charging time for lithium-ion battery, someone may ask, since the constant voltage phase of the lithium-ion battery current decreases, not when the current to infinity when the real deep charge.