227491 ⎘
Substation equipment, e.g. for use by subscribers; Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection; Cordless telephones with one base station connected to a single line; Radio link set-up procedures Searching for available channels
Method and device for adjusting frequencies of intercom apparatuses
#2Methods and apparatus for flexible bandwidth operation
#3Wireless headset system with two different radio protocols
#4Microphone system and method for selecting an operating frequency for a or said microphone system and computer program
#5Wirefree intercom having low power system and process
#6Method and system for maintaining synchronization in low-power mode over a frequency hopping radio link