Aastra SIP Telephones

51i

Exceptional Features and Value in a Basic Level IP Telephone

The Aastra 51i offers features and flexibility in an open-standards based, carrier grade basic level IP telephone. With a sleek and elegant design and LCD display the 51i is fully interoperable with leading IP Telephony platforms, offering advanced XML capability to access custom applications and support for high-quality SIP communications. Part of the 5i Series of IP telephones, the 51i is ideally suited for light use small and medium business applications such as lobbies or common areas, where single line high-quality SIP communication is required.

Aastra 51i Data Sheet

 

53i

Exceptional Features and Value in a Featured IP Telephone

The Aastra 53i from Aastra offers powerful features and flexibility in a standards based, carrier-grade basic level IP telephone. With a sleek and elegant design and 3 line LCD display, the 53i 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 family of IP telephones, the 53i is ideally suited for light to regular telephone requirements.

Aastra 53i Data Sheet

 

55i

Exceptional Features and Value in an Advanced Featured, Expandable IP Telephone

The Aastra 55i from Aastra offers powerful features and flexibility in a standards based, carrier-grade advanced level expandable IP telephone. With a sleek and elegant design, 144 x 75 pixel backlit LCD display and 6 dynamic context-sensitive softkeys, the 55i is fully interoperable with leading IP Telephony platforms, offering advanced XML capability to access custom applications and support for up to 9 calls simultaneously.

Aastra 55i Data Sheet

 

57i

Exceptional Features and Value in an Advanced Featured, Expandable IP Telephone

The Aastra 55i from Aastra offers powerful features and flexibility in a standards based, carrier-grade advanced level expandable IP telephone. With a sleek and elegant design, 144 x 75 pixel backlit LCD display and 6 dynamic context-sensitive softkeys, the 55i is fully interoperable with leading IP Telephony platforms, offering advanced XML capability to access custom applications and support for up to 9 calls simultaneously.

Aastra 57i Data Sheet

 

 

9112i

Value Based IP

The Model 9112i is a value priced, basic single line IP Telephone with speakerphone offering a flexible, interoperable IP solution that meets VoIP budgets for most applications.

Aastra 9112i Data Sheet

 

 

 

 

 

9133i

The Model 9133i is an advanced, fully featured multi-line IP Telephone that takes full advantage of VoIP technology by offering a flexible, interoperable solution at an affordable price.

 

 

 

 

 

480i

The Model 480i is an advanced, fully featured, IP screen Telephone that provides a flexible IP solution designed with interoperability and ease of use in mind.

Aastra 480i Data Sheet