Aastra 57i CT

With exceptional features, outstanding specifications and advanced IP telephony functions, the Aastra 57i CT offers a telephone that meets modern standards and has the ability to expand functionality.

With exceptional features, outstanding specifications and advanced IP telephony functions, the Aastra 57i CT offers a telephone that meets modern standards and has the ability to expand functionality.

* Mobility

With the secure DECT wireless communications standard (WDCT), the Aastra 57i CT extends the capabilities of a desk phone, eliminating the need to deploy a separate wireless network in the enterprise. It also allows for the most flexible and efficient use of telephony.

* XML Browser

The Aastra 57i CT is equipped with an XML browser, allowing access to various standard functions and applications from the phone. Any operator can develop internal programs using documentation supplied by Aastra. This capability allows for a potentially infinite expansion of the phone's functionality for business applications or server applications that require a screen and keyboard to operate.
Advanced Call Control
Together with the large amount of information stored in the address book, call history and 12 programmable keys, the Aastra 57i CT demonstrates operational efficiency by allowing the user to receive call information at the touch of a single button.

* Extension

Aastra 57i CT supports up to three Aasta 536 modules, each of which has 36 keys with light indicators, allowing you to create a large functional console. Or the phone supports up to three extended Aastra 560M modules, each of which has 60 additional keys, an LCD screen and light informers.

* Quality of language

High-quality speakerphone with excellent speech transmission quality – functionality and quality tested over the years and confirmed by its own brand.

* Easy to maintain

From initial telephony deployment to upgrades and feature development, the Aastra family of phones is a smart choice for investment protection in both time and money. Two Ethernet ports eliminate additional cabling and make installation easier. Built-in IEEE 802.3af Power-over-Ethernet receivers make deployment more convenient, allowing centralized power management and easy power backup. Simple configuration files editable with a standard text editor make centralized setup easy and straightforward.

Product Features

* Physical:

20.8 cm Width x 23.5 cm Depth x 8.0 cm Height
895 g

* Nutrition

AC adapter included
Built-in IEEE 802.3af Power Over Ethernet (PoE)

* Handset / Headsets

Modular RJ9 headset jack compatible with most headsets.
The handset is compatible with analogues
High quality speakerphone

* Display

144x128 graphic LCD display with soft white backlight
LED call and mailbox message signaling

* Additional keys

4 control keys
4 keys with indicators for selecting lines
12 context keys
6 programmable keys with indicators
8 preset keys to access functions such as: Bye, Settings, Call Hold, Redial, 2xVolume, Speaker/Headset, Mute

* Networking capabilities

Two 10/100 Mbps Ethernet ports
Manual or automatic (DHCP) assignment of IP addresses
Time synchronization via SNTP
IEEE 802.1p/Q VLAN QoS and Priority, TOS and DiffServ
NAT
Built-in HTTP for management and configuration
DNS-SRV support or local BackUp server
Possibility of using configuration files

* Protocols / Codecs

IETF SIP (RFC3261)
G.711 m-law/A-law
G.729

* Main advantages

Notebook
Call transfer
Call transfer
Standby mode
Information about incoming and outgoing subscribers
Call history
Conference
List of dialed numbers
One-click call

* Functionality available depending on IP system