Cisco has a lot of MAC vendor prefixes and we can not say which are all used for the SPA ATA. We added already:
50:67:ae:*:*:*
88:90:*:*:*:*
00:da:55:*:*:*
We have to add:
00:A2:89:*:*:*
Like described here thanks to @onledv
Please tell us if you find out more ranges used by SPA ATAs
MarkusF
2
Model: SPA112, 2 FXS
Hardware Version: 1.1.0
Boot Version: 1.3.1
Firmware Version: 1.4.1SR1 (002) Aug 2 2017
Recovery Firmware: 1.3.0 (001)
WAN MAC Address: 00:E1:6D:xx:xx:xx
Host Name: SPA112