Junction Networks announced that Aastra’s SIP-based IP phones are compatible with its OnSIP Hosted PBX service.

Junction Networks tested the Aastra 53i, 57i and the 57iCT model business phones for interoperability with OnSIP features and applications; including call waiting, call forwarding, auto attendant, caller ID, voice mail, do-not-disturb settings, and more.

The 53i features a three-line display and six programmable buttons, and the 57i and 57iCT feature a large, self-labeling display with 12 programmable keys, giving access to 30 programmable functions on multiple scrolling pages. Both phones can handle up to nine simultaneous line appearances.

In addition, the Aastra 57i CT cordless telephone (CT) allows a user to roam within a 300-foot radius of the 57i telephone.

Each Aastra IP phone displays a mini browser that provides access to XML applications and services. The XML API from Aastra allows the phones to run customized applications, such as call accounting to keep track of billable phone time for multiple clients. The phones’ programmable keys also can be used to execute OnSIP-supported functions.