User Manual (DS6421-3 User Manual)
Page 58
... handset and then press SELECT. Intercom Use the intercom feature for conversations between two system handsets. Multiple handset use . 2. You can buy additional expansion handsets (DS6401) for all people hang up to 12 handsets to highlight Intercom, then press SELECT. • If you have two handsets, your handset displays INTERCOM and...
... handset and then press SELECT. Intercom Use the intercom feature for conversations between two system handsets. Multiple handset use . 2. You can buy additional expansion handsets (DS6401) for all people hang up to 12 handsets to highlight Intercom, then press SELECT. • If you have two handsets, your handset displays INTERCOM and...
User Manual (DS6421-3 User Manual)
Page 101
... IN USE light on the telephone base turns on BASE to register in the telephone base. 2. Add and register a handset You can add new handsets (DS6401, purchased separately) to your telephone system, but each expansion handset shows Put handset on BASE to register after the third try, the handset displays Registration...
... IN USE light on the telephone base turns on BASE to register in the telephone base. 2. Add and register a handset You can add new handsets (DS6401, purchased separately) to your telephone system, but each expansion handset shows Put handset on BASE to register after the third try, the handset displays Registration...