Call stack is a small device. When some areas are occupied

 by higher priority calls, and the calls cannot be sent to all the required areas, the device can record these calls. The device can store up to 16 high-quality calls with a maximum of three minutes per call, including music and pre recorded information. Calls can be played back even during recording. The device can record and / or replay up to 8 calls simultaneously. In order to increase the number of recordable calls, multiple such devices can also be added to the system. These devices can be connected to any location on the Praesideo network. Basic function call memory functions are configured as part of the call macro in Praesideo. When the area is occupied or the call in some areas is controlled, the user can configure the device to record the call for playback later. When these areas are available again, the call will be replayed to the remaining areas automatically, and the call can be played back to all areas at once or to each area one by one. When the call is played back, it is deleted from memory. The device can also be configured with a timeout to delete calls that have expired and not been sent. In addition, the call memory can also be used as a time converter to prevent acoustic feedback from the speaker to the currently active microphone. The call can be broadcast after the recording is completed, or it can be pre monitored or cancelled before broadcasting. Time conversion and call storage can be used together. The device supports recording and playback of calls, but the recorded calls will not be saved and monitored when the device is shut down. Therefore, it is not necessary to rely on the call memory function to record emergency calls. This device can be configured by Praesideo network controller (web browser interface). Control and indicator light · two LED indicator interconnect components for indicating power and network status · two Praesideo network connectors · RJ11 service connector (JTAG) certificate and approved safety in accordance with IEC 60065 / en 60065, immunity in accordance with en 55103 ￣ 2 / en 50130 ￣ 4 / en 50121 ￣ 4, heat dissipation in accordance with en 55103-1 / fcc-47 part 15b emergency compliance 60849 / en 54 ￣ 16 / ISO 7240 ￣ 16 standard maritime compliance IEC 60945 regional certification European CPR EU_ CPR CE CE COC CE CertAlarm

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