SIP Gateway 

VIP-851-25
25-Volt IP/SIP 20W Amplifier

VIP-851-25-IC
25-Volt IP/SIP 20W Amplifier, InformaCast


VIP-851-70/100
25/70/100-Volt IP/SIP 20W Amplifier

VIP-851-70/100-IC
25/70/100-Volt IP/SIP 20W Amplifier, InformaCast