Aastra 571 not updating firmware


14-Apr-2019 11:31

The base and the handset are probably going to work if they are not using the same firmware version, although this does not seem to be officially recommended.

- Various improvements have been made to the DTMF feature in the 3.2.2 SP3 Release.

Aastra also has a couple of small business appliances that are powered by Asterisk and Microsoft.

The CT models include a cordless phone along with the base phone.

aastra 571 not updating firmware-58

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The default password for most Aastra's is 22222 but of course, as these are second hand sets, they had set the password to something else.To make matters worse, I couldn't even plug in my phones because they came without AC adapters and we had planned to provide Power-over-Ethernet to these phones.I ended up finding this article: and I can see he felt my pain.8/16- Aastra 5xi series phones are configured to send a provisional response, or PRACK, with the 100 rel setting enabled, When calling to or from the On SIP app or any encrypted audio enabled client, it tells our proxy to send the phone the encryption information, and breaks the call.

aastra 571 not updating firmware-90

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We are investigating, but at this time we can not find a way to disable the 100 rel setting at the user level.My solution is similar to his but I've added some extra detail.



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