Frequently Asked Question
Upgrade to GA 1.8.6-1249 from 1.7-237-235
Last Updated 2 years ago
Some upgrades require an intermediate upgrade. These are the steps to upgrade to GA 1.8.6-1249 from 1.7-237-235.
Upgrading very first firmware from 2008 =
1. From phone at 1.7-237-235 circa 2008
2. Upgrade to 1.7-249-249
3. Upgrade to 1.8.6-1249
Contact SIPSupport for necessary firmware.