Aastra 5i Series SIP Telephones
The 5i Series of IP telephones from Aastra are an Enterprise-grade family of powerful and expandable SIP phones featuring a sleek, global design and large screen displays.
All Aastra 5i phones feature an embedded XML browser, full-duplex speakerphone, Power over Ethernet or AC power option, dual auto sensing swithced Ethernet ports, multi-lingual displays, up to 9 call appearance lines, Busy Lamp Field support and extensive storage capacity for personal directories, callers logs and redial lists. All Aastra 5i phones are wall mountable and offer 4 position foot stands.
Choose your Aastra 5i Series SIP Telephone
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- 51i VoIP Telephone
- New
- $99.40
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- 57i VoIP Telephone
- New
- $227.30
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- 57i VoIP Telephone with Cordless Handset
- New
- $326.60
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- 536M Expansion Module
- New
- $137.80
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- 560M LCD Expansion Module
- New
- $169.20
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- 55i VoIP Telephone
- New
- $212.40
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- 53i VoIP Telephone
- New
- $167.50
The Aastra 5i Series SIP Telephones certified for trixbox and are highly recommended for 
The Aastra 5i Series SIP Telephones are arguably the best phones to use with Asterisk based VoIP open source systems. 
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