The C-210 allows single line telephones or a telephone system to share a phone line with a single Viking entry phone. Tenants may answer an entry phone call and converse with the visitor.
Use in conjunction with the Viking K-1900-5 dialer to make an outside call if there is no answer on the inside phone.
The C-210 provides a “Call Waiting” tone when the phone line is in use.
Tenants may call out to the entry phone for monitoring purposes.