Press Contact
Aastra Technologies Ltd.
155 Snow Blvd.
Concord, Ontario
L4K 4N9

Aastra Telecom expands its 5i Series SIP Telephone portfolio with the launch of the 51i

Introduction of a new SIP telephone extends one of the most compete VoIP telephone offerings in the industry

CONCORD, ON, CANADA, — August 21, 2007 — Aastra Telecom, a leading provider of traditional and VoIP communication products and systems, today announced that it has  expanded its popular 5i Series of standards-based VoIP telephones with the launch of the 51i. With the addition of this smartly featured single line IP phone, end users will now have access to one of the most complete portfolio offerings of SIP desktop and wireless phones in the industry.
Featuring an elegant global design, LCD display screen and full duplex speakerphone, the 51i also incorporates productivity enhancing features that can be found on all of Aastra’s existing SIP telephones including; an embedded XML browser, dual auto-sensing switched Ethernet ports and an industry leading simplified deployment and upgrade design. Continuing a commitment to interoperability, the 51i, as part of the 5i Series, has undergone and successfully completed certification testing with many of the leading IP Telephony call server platforms making it appeal to a wide range of SMB and Enterprise customers.

Designed to meet the demand for a value priced entry level SIP phone, the single line 51i is ideally suited for light use in small and medium business, or institutional applications such as lobbies, common areas or single user environments.  The 51i delivers an excellent mix of value and performance in a carrier/enterprise grade quality IP phone and fits in well with the rest of the 5i family that offers enhanced features and functionality. 

The 5i Series now consists of five telephones and two expansion modules;

51i       Entry level single line set with 3 line/16 character display and
            9 configurable speed dial keys using the number keypad

53i       Featured set with 3 line/16 character display and 4
            programmable keys.  Compatible with up to three 536M
            expansion modules

55i       Advanced Featured set with 144 x 75 backlit LCD display,
            up to 26 programmable  function capability. Compatible with
            up to three 560M or 536M expansion modules
57i       Full Featured set with 144 x 128 backlit LCD display, up to
            30 programmable function  capability. Compatible with up to
            three 560M or 536M expansion modules

57i CT All the features of the Aastra 57i plus integrated cordless
            base providing VoIP mobility  employing secure 2.4GHz
            Frequency Hopped Spread Spectrum technology

536M  Expansion Module with 36 programmable keys

560M  Expansion Module with LCD Screen and 60 programmable keys

Organizations that are migrating to a converged IP environment whether it is Hosted VoIP, a Premised based IP-PBX / Hybrid PBX or Open Source PBX will be able to find an Aastra IP Telephone perfectly suited to meet their needs.

“With the launch of the 51i we are responding to our partners and customers needs for a cost effective entry level IP telephone” said Yves Laliberté, Executive Vice President of Sales at Aastra Telecom.  “Adding this product to the 5i Series demonstrates our ongoing commitment to offer the best selection of quality standards-based VoIP endpoints in the industry”
The 51i is available immediately through Aastra’s authorized IP distribution channels in North America.
Aastra will demonstrate its entire line of SIP phones, including the 51i and the recently launched Aastra SIP-DECTTM wireless phone, at VoiceCon taking place August 20 – 23, 2007 at the Moscone North Convention Center in San Francisco CA. (Booth #211)

About Aastra
Aastra Telecom is a North American business unit of Aastra Technologies Limited (“Aastra”), a global company at the forefront of the Enterprise Communication market.  Headquartered in Concord, Ontario, Canada, Aastra develops and delivers innovative and integrated solutions that address the communication needs of businesses small and large around the world.  Aastra enables Enterprises to communicate and collaborate more efficiently and effectively by offering customers a full range of open standard IP-based and traditional communications networking products, including terminals, systems, and applications.  For additional information on Aastra, visit our website at

Aastra® is a registered trademark of Aastra Technologies Limited.

Media Contact:

Aastra Telecom
Steve Hawkins
+1 905.760.4251

Start . Privacy . Legal Notice . Accessibility

© 2014 Aastra Technologies Limited. All Rights Reserved.