Aastra 6757i / 6755i / 6735i SIP IP Phone — Default Password
Default username and password for the Aastra 6757i / 6755i / 6735i SIP IP Phone: admin / 22222. Learn how to log in and how to change the default credentials.
Enterprise SIP desk phones now marketed under the Mitel brand following the 2014 acquisition. The embedded web server uses numeric PIN-style credentials by default. The same defaults apply across the 6735i, 6755i, and 6757i models. A known vulnerability (CVE-2012-0353) allowed extraction of SIP credentials from the web interface source code.
| Username | Password | Access | Notes |
|---|---|---|---|
admin | 22222 | Web UI | Default administrator PIN; some models shipped with 31573 or 43628 |
Responsible use
This database lists publicly documented default credentials so administrators can find and change them. Only use these on systems you own or are authorized to test.
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