Friday, August 24, 2012

The new working instruction of Cell Phone Jammers has been issued

 The new working instruction of Cell Phone Jammers has been issued.
Repeater antennas work as high, will interfere with the destructive effects of large-scale expansion. CDMA is a system with frequency, the surrounding base stations are likely to be blocked and paralyzed. According to information, cause a national repeater and base stations installed as high as more than 2 to 1; because of China's large population density, the proportion of repeaters and base stations installed should not be too large, if there is no fiber optic repeater, only RF coupled to the outdoor repeater is concerned, this ratio should not exceed 1. The material inquisition sheet of Cell Phone Jammers needs the signature of the director of the workshop.
China's relevant departments to develop a telecommunications network between the user and relay signaling standards bureau. In mixed analog-digital networks allow compatible with both interoffice trunk signaling, a reference to the original formulation of the CCITT R2 signaling channel associated signaling, namely, China No.1 signaling; the other is the reference to the original CCITT No. 7 Common Channel Signaling developed signaling, namely, China No. 7 signaling. With the popularity of program-controlled digital switches, relays the signaling will be unified China No. 7 signaling. With the way the way in signaling, signaling through the voice channel transmission. Channel associated signaling, including analogue subscriber line signaling and inter-office trunking signaling. In the telephone network, the terminal and the switch between the analog signal is transmitted. Analog subscriber line subscriber line signaling, including opening of the closed-loop signals, DTMF dial tone signal and various other. Analog and mixed analog-digital telephone network with the way the use of interoffice trunk signaling mode. Interoffice trunk signaling can be divided into inter-office line signaling and signaling hair in mind. The worker is handling the parts and components of Cell Phone Jammers in the workshop.
Major transmission line between the Bureau of signaling (eg, busy, answer and release) of the trunk control signal. According to the different nature of trunk transmission lines, require different signaling methods. DC line signaling: applies to the audio through the solid lines for DC transmission lines. Mainly used for mechanical and electrical system to the central office of the Bureau of signaling between the lines. AC line signaling: also known as single-frequency band (2 600 Hz) signaling for frequency division and time division multiplexing transmission relay circuit, mainly for the crossbar between the line long-distance signaling Bureau Bureau. Digital line signaling: the use of PCM16 digital transmission line signal time slot, only for PCM transmission relay circuit is mainly used for crossbar switching office and the crossbar switching between the Bureau and the Bureau of digital exchange between the Bureau of signaling between the lines. Interoffice signaling remember hair hair is sent between switches in mind the number of signaling, including the calling number, called number and types of business. Then follow the road as the routing in the signaling basis. China recorded the use of multi-frequency signaling hair mutual control (MFC) signaling mode. The warehouse needs more room to accommodate more Cell Phone Jammers .

1 comment:

  1. By using Office Trunking you can simplifies your network and reduce its cost also improve your comminication level you can reduce your connectivity charges and get many more benefits.

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