Cortelco 123 External Ringer Visual Light Amplifier 000123eltpak Phone Accessories Cdwg Com

the rg 10a ring generator is designed to increase ringing power of an existing telephone line analog pabx extension analog isdn terminal adapter port or any other telecom device which provides ringing the rg 10a duplicates the incoming ring frequency and cadence allowing it to be compatible with custom ringing features it is capable of ringing twelve standard telephone devices and does not affect the normal operation of the telephone line or features provided by the phone company such as caller id and call waiting