Aastra 480i SIP IP Telephone (A1700-0131-10-05) - is an advanced, fully featured, IP screen Telephone that provides a flexible IP solution designed with interoperability and ease of use in mind. Up to 9 call appearance lines Personal directory Call forward Call transfer Call waiting Caller and calling line information Callers log Conference Hold Redial list Live dial pad or pre-dial support Broadsoft’s BroadWorks enhanced SIP – support for Intercom, Shared Call Appearances, CommPilot Call Manager Nortel’s MCS SIP support – Conferencing, Voicemail, and NAT Traversal support Sphere's Sphericall MGCP support - BLF, Intercom.

• Large display — Eight-line backlit screen with six context sensitive softkeys provides more information and flexibility in call handling
• Enhanced Call Management — Large storage for personal directory, callers log, and redial list
• Tight Integration — Support for Sphericall MGCP and multiple SIP IP telephony systems including BroadWorks®, Nortel, Sylantro and Asterisk
• Multiple Line/Call Appearance Lights — Support up to 9 simultaneous calls. Juggle multiple calls easily with a single press of a button
• Shared Call Appearances — Shared calls allow you to place a call on hold at one set and pick it up easily at another set
• Remarkable Audio — Quality speakerphone with excellent voice clarity and delivery
• Protect Your Investments — Firmware upgrades can be downloaded and installed in the field as standards develop and protocols evolve
• Less Wiring — Built in dual 10/100 switched Ethernet ports let you share a connection with your computer. Inline power support eliminates power adapters
• Hearing aid compatible handset
• *Feature availability dependent on IP telephony system