Having the ability to answer phone calls when away from the desk is more efficient. Saves on the time to retrieve voice messages, gets things done in real time and prevents the gymnastics of racing for ringing telephones.
The Discover D627 is designed for use with compatible Avaya and ShoreTel phones and your Discover D904 wireless headset
Avaya models: 1408/1416 1608/1616 2410 5410 6416D+M 6424D+M 9404/9408 9504/9508 9608/9610 9611G 9620/20C/20L 9621G 9630/30G 9640/40C/40G/41G 9650/50C and 9670. ShoreTel models IP 212K, IP 265,IP 565/565G, 230/230G, 560/560G.