Business Grade IP Telephony

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500 Business Grade IP Telephony

Aastra range

Aastra is a leading manufacturer of IP phones in Europe. They offer the latest in open-standard telephones, which are inter-operable, easy to upgrade, ease to use and are aesthetically attractive.

  • Entry Level – 51i – Features and flexibility in an open-standards based, carrier-grade value IP telephone. With a sleek and elegant design and LCD display the 51i offers advanced XML capability to access custom applications and support for high-quality SIP communications.
  • Mid-range – 53i – Powerful features and flexibility in a standards based, carrier-grade business IP telephone. In keeping with the 5x range, the 53i is also an attractive phone which incorporates and 3 line LCD display. Like the 51i, it is fully interoperable with leading IP-telephony platforms, offering advanced XML capability to access custom applications and support for up to 9 simultaneous calls.
  • Mid-range – 55i – All of the features of the 53i but in an expandable business IP telephone which incorporates a 144 x 75 pixel backlit LCD display, 6 dynamic context-sensitive soft keys and the ability to cater for 9 simultaneous calls. The 55i is ideally suited for all business telephone requirements and users who require additional one-touch feature keys and XML based interoperability
  • Top-end – 57i – As the top of the 5x range, the 57i phone offers all of the features and flexibility that could be hoped for in an expandable business grade IP telephone. A large 144 x 128 pixel graphical backlit LCD display and 6 dynamic context-sensitive soft keys allow for simple and efficient use. In common with the 5x range, the 57i is fully interoperable with leading IP telephony platforms, offering advanced XML capability to access custom applications and can also support for up to 9 calls simultaneously. The 57i is ideally suited for executives and business telephone users who require a number of ‘one touch’ feature keys.

The table compares the features and functionality of each of the Aastra phones:

Aastra 51i 53i 55i 57i

Aastra 51i Aastra 53i Aastra 55i Aastra 57i
No. of lines 1 line Up to 9 call appearance lines Up to 9 call appearance lines Up to 9 call appearance lines
Sound quality Full duplex speaker phone Full duplex speaker phone Full duplex speaker phone Full duplex speaker phone
PBX Functionality Supports all standard PBX functions Supports all standard PBX functions Supports all standard PBX functions Supports all standard PBX functions
Display 3 line LCD. No backlight 3 line LCD. No backlight 144 x 75 Graphical LCD. With white LED backlight 144 x 128 Graphical LCD. With white LED backlight
PoE support Integrated IEEE 802.3af. Optional PoE Injector Integrated IEEE 802.3af. Optional PoE Injector Integrated IEEE 802.3af. Optional PoE Injector Integrated IEEE 802.3af. Optional PoE Injector
Configuration Easy to configure and use Easy to configure and use Easy to configure and use Easy to configure and use
Interoperability Fully interoperable with leading IP-Telephony platforms Fully interoperable with leading IP-Telephony platforms Fully interoperable with leading IP-Telephony platforms Fully interoperable with leading IP-Telephony platforms
Ports Two 10/100 Switched Ethernet Ports Two 10/100 Switched Ethernet Ports Two 10/100 Switched Ethernet Ports Two 10/100 Switched Ethernet Ports
SIP Yes Yes Yes Yes
USB Port No No No No
Encryption Capable of encryption Capable of encryption Capable of encryption Capable of encryption
Local Conferencing No 3-way conferencing 3-way conferencing 3-way conferencing
Multi-language Multi-lingual support Multi-lingual support Multi-lingual support Multi-lingual support
No. of keys 27 32 39 39
Programmable keys None None 6 softkeys – up to 20 functions 12 softkeys – up to 20 functions
No. of function LEDs 2 12 19 19
Directory 200 200 200 200
Callers Log 200 200 200 200
Redial last numbers 100 100 100 100
Headset Port Yes Yes Yes Yes
VLAN capable Yes Yes Yes Yes
QoS capable Yes Yes Yes Yes
Expansion Module support No 536M 536M or 560 536M or 560
Browsing XML Support XML Support XML Support XML Support

In addition to the key models above, other Aastra IP phones are also available – please call us on 0845 0000 500 for details. Back to top ^

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