Radios for department heads / DP2400

Hi,

We have a radio setup based on Motorola DP2400 radios spread across different channels. The different channels are used by different departments. It would be great if the department heads could be fitted with a radio with the capability to adress all relevant channels simultaneously. Is this possible and if so - what radio could be used in this setup?

Thanks for all input,

Eirik.