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Aastra 51i IP Telephone Aastra 536M Expansion Module Aastra 53i IP Telephone
Aastra 51i IP Phone - A1751-0131-10-01
List Price: $99.99
Our Price: $87.99
Aastra 536M Expansion Module - A-1736-0000-10-55
List Price: $149.99
Our Price: $129.99
Aastra 53i IP Phone - A1753-0131-10-01
List Price: $189.99
Our Price: $164.99
Exceptional Features and Value in a Basic Level IP Telephone The 536M expansion module is designed to increase the power and flexibility of the 5i Series SIP telephones. The Aastra 53i offers powerful features and flexibility in a standards based, carrier-grade basic level IP telephone.
Aastra 55i IP Telephone Aastra 560M Expansion Module Aastra 57i IP Telephone
Aastra 55i IP Phone - A1755-0131-10-01
List Price: $249.99
Our Price: $216.99
Aastra 560M Expansion Module - A1760-0000-10-55
List Price: $199.99
Our Price: $169.99
Aastra 57i IP Phone - A1757-0131-10-01
List Price: $279.99
Our Price: $239.99
The Aastra 55i offers powerful features and flexibility in a standards based, carrier-grade advanced level expandable IP telephone. The 536M expansion module is designed to increase the power and flexibility of the 5i Series SIP telephones. Features and Value in a Fully
Featured, Expandable IP Telephone
Aastra 57i CT IP Telephone with Cordless Accessory Handset
Exceptional Features and Value in a Fully Featured, Expandable, Mobile IP Telephone