General Display (LCD) Lines/Characters: 5.7" Color LCD Resolution: QVGA (320 x 240 pixels) LCD Contrast: Yes (5-level) LCD Backlit: Yes Headset Jack: Yes Message waiting LED: Yes Speakerphone: Digital Duplex Personal Speed Dial: System Speed Dial, Extension Directory and 300 Contact Directory Alphanumeric Directory Search: Yes- directory and LDAP search Call Log (Incoming): 100 Call Log (Outgoing): 100 Function Button: 48 (8x6 on LCD) Interface for CTI (3rd Party): PC LAN Port Network camera integration: Yes Presence: Yes - NT400 and Communication Assistant Pro users Chat/instant messaging (IM): Yes - with NT400 and Communication Assisant clients Built-in web browser/GUI: Yes - IE customized for NT400 GUI Supports corporate intranet applications: Yes Add-on Key Module/DSS Console: No/No Bluetooth Module: Yes Self Labeling: Yes Navigation Key: Yes Ringer Tone/Melody: 30 Wall Mounting: Yes Color: Black Dimensions (H x W x D): 6.25" x 11" x 6.25" Weight: 2.76 lbs

General Display (LCD) Lines/Characters: 5.7" Color LCD Resolution: QVGA (320 x 240 pixels) LCD Contrast: Yes (5-level) LCD Backlit: Yes Headset Jack: Yes Message waiting LED: Yes Speakerphone: Digital Duplex Personal Speed Dial: System Speed Dial, Extension Directory and 300 Contact Directory Alphanumeric Directory Search: Yes- directory and LDAP search Call Log (Incoming): 100 Call Log (Outgoing): 100 Function Button: 48 (8x6 on LCD) Inte