Communication management and communicating between a mobile communication device and another device

A method for communicating with a given device that is located at a given direction with respect to a communication device, the method comprising:

• transmitting a triggering signal by one of:
• the communication device and a server;
• receiving the triggering signal by multiple devices which include the given device;
• responsive to the transmission of the triggering signal, allocating to each of the multiple devices, by the server, a different ad-hoc signal which includes a sequence of sound signals that uniquely identifies the respective device;
• transmitting, by the multiple devices, the different ad-hoc signals;
• receiving the different ad-hoc signals by the communication device, using two or more microphones of the communication device;
• determining, by the server, which of the one or more devices is the given device, based at least on different times of reception of the different ad-hoc signals by the two or more microphones of arrival of the communication device;
• and
• attempting, by the communication device, to establish communication with the given device.