cell jammers are widely used in conference rooms, examination rooms, prisons and other places where quietness or communication interference is required. However, a common question is, can these cell phone signal jammers block landline phone signals?

  The difference between landline and mobile phone signals

  Before discussing whether a cell phone signal jammer can block landline calls, we first need to understand the difference between landline and cell phone signals. Landlines are connected to a telephone exchange via hard-line telephone lines through which communication signals are transmitted, while mobile phone signals are transmitted through radio waves. Therefore, there are significant differences in the way landline and mobile signals are transmitted.

  cell phone jammers interfere with the communication signals between mobile phones and base stations by emitting electromagnetic waves in specific frequency bands. The "noise" generated by these electromagnetic waves covers the target frequency band and prevents mobile phone communication, thus achieving the purpose of blocking mobile phone signals. Since landline phone signals are transmitted through wired phone lines rather than radio waves, cell jammers cannot directly block landline phone signals. Even when a cell jammer is used, landline phones can still communicate normally.

  Although cell phone signal jammers cannot directly block landline phone signals, there are still other ways to limit landline phone communications. For example, landline telephone communications can be disrupted or blocked by using devices such as phone line jammers or phone line jammers. These devices are often used in prisons, sensitive conference rooms and other places to prevent the misuse of landline phones.

  To sum up, the cell jammer cannot directly block the signal of the landline phone, because there are differences in the transmission methods of landline and mobile phone signals. To restrict landline communications, additional equipment or methods may be required. When using any device to affect communications, you need to ensure that you comply with relevant laws and regulations to avoid breaking the law.