Aastra Telecom is pleased to announce the availability of a significant new software update for the 5i series of SIP telephones – 53i, 55i, 57i, and 57i CT

Release 2.1 delivers many new features and functionalities, offering increased security and flexibility while enhancing user interfaces and simplifying deployment.
This release includes:

- Full interoperability with Sylantro’s SIP-B feature set

- Transport Layer Security (TLS) and Secure Real Time Transport Protocol (SRTP) support

- Extended support for 5i Expansion Modules:

- Aastra 536M is now supported by the 53i, in addition to the 55i, 57i and 57i CT.

- Aastra 560M is now supported by the 55i, in addition to the 57i and 57i CT

- Additional downloading protocols supported via DHCP option 66: HTTP, HTTPS, FTP and TFTP

- Further interoperability enhancements for Broadfsoft’s Broadworks® platforms

- Enhanced usability allowing quick speed-dial setup via Phone User Interface

- Additional XML enhancements including new options and functionalities for XML objects and softkey management

The new firmware update and documentation are freely available from the Aastra website. Please visit aastratelecom.com, click on “Support” and then select “Download Area”.