The phone allows the user to be non-stationery in calling with up to a 300,000 sq. ft. coverage area. There is the ability to have 4 handsets per base. The Aastra 6757i CT / 57i CT IP Phone supports 2 simultaneous calls - one on base and one on cordless handset. Aastra 57i CT IP Phone with Cordless Mobility, Full-Duplex Speakerphone, Graphical LCD Screen & Up to 9 Lines Supported - Connexio 5i Series.
The Aastra 57i CT IP Phone has 6 static keys which are programmable up to 10 different functions. For ones that love hands free phones there is a built-in amplifier along with headset support. The Aastra 57i CT is expandable up to 3 modules of model 536M and 560M.
The Aastra 57i CT offers powerful features and flexibility in a standards based, carriergrade advanced level, expandable, IP telephone that includes an integrated WDCT cordless mobility handset for coverage up to 300,000 sq ft. With a sleek and elegant design, large 144 x 128 pixel graphical backlit LCD display and 6 dynamic contextsensitive softkeys, the 57i CT base unit is fully interoperable with leading IP Telephony platforms, offering advanced XML capability to access custom applications and support for up to 9 calls simultaneously.
Part of the Aastra 5i Series of IP telephones, the 57i CT is ideally suited for executives, heavy telephone users who require more one touch feature keys and a large screen to take full advantage of XML based programs and mobile warehouse, support and retail staff.
Employing secure WDCT cordless technology, the Aastra 57i CT expands VoIP beyond the desktop without the need for a separate wireless network. Increases flexibility and efficiency for those not tied to a desk.
The Aastra 57i CT is equipped with XML browser capabilities and an extra large display with dynamic softkeys to easily access customized services and applications. Create internal service applications using development guides available from Aastra. This feature provides unlimited potential to customize the 57i CT to meet your specific business needs or vertical applications using the display and keypad.
With extensive storage capacity for personal directories, callers logs and redial lists and 12 programable keys, the Aastra 57i CT can improve efficiency by providing more call information with the push of a button. Features such as shared call and bridged line appearances, call forward, call transfer, call waiting, intercom and local 3-way conference increase call flexibility and control.
The Aastra 57i CT offers two different module extension options. It supports up to three Aastra 536M modules, each offering 36 keys with LED indicators to create a feature rich attendant console. Or, it will also support up to three of the advanced Aastra 560M modules, each offering 60 keys with a screen based LCD display and LED system.
All Aastra IP telephones offer full-duplex speakerphone with excellent voice clarity and delivery. With years of experience in telecommunications and telephone design, Aastra can ensure superior voice quality on every product we sell.
From initial deployment and configuration to future enhancements and upgrades, the Aastra family of IP telephones are designed to save your business time and money. Dual auto-sensing switched Ethernet ports eliminate additional wiring and simplify installations. Integrated IEEE 802.3af Power-over-Ethernet allows easy deployment with centralized powering and backup. Easily created configuration files, using any text editor, can be used to configure phones individually or centrally.
Aastra 57i CT Features & Functionality
- Up to 9 call appearance lines
- Shared call and bridged line appearances
- Multi-proxy support
- Distinctive ringing, priority alerting
- XML browser
- Personal directory
- Call forward/Call transfer/Call waiting
- Caller and calling line information
- Callers log
- Local 3-way conference
- Intercom with auto-answer
- Redial list
- Do Not Disturb
- Live dial pad or pre-dial support
- Digium’s Asterisk Business Edition – supports Busy Lamp Field (BLF), Bridged Line Appearances (BLA), Intercom
- BroadSoft’s BroadWorks enhanced SIP – supports Shared Call Appearances, Busy Lamp Field (BLF), CommPilot Call Manager
- Nortel’s MCS 5100/5200 SIP supports – Conferencing, Voicemail, and NAT Traversal
- Sylantro’s SIP – supports Bridged Line Appearances (BLA), ComСierge, Call Park/Pickup, Conference