Gain the following capabilities at a hefty cost-savings when you buy used Avaya 8520 ISDN phones online from Black Box Resale.
Features:
- 20 programmable buttons, ISDN terminal
- 9 fixed feature buttons
- Large supertwist LCD; 7-lines, 24-characters
- Call logs keep track of 60 recent calls
- Built-in speakerphone
System Requirements/Compatibility:
- DEFINITY ECS G2 or G3
- TN556B BRI ISDN line circuit card
- Compatible with "custom" ISDN service from local service providers
Product shown in Black.