planning to buy phones for my lab
i already have the 3550-24 pwr switch and i know this is not 802.3af compliant.
do 7960g and 7912g work on this switch?
Hope all is well my friend! Yes, both of these models (7960G and 7912G) will work with Cisco Pre-Standard PoE :)
Q. What IP phone models support the Cisco pre-standard method of powered device detection?
A. These Cisco IP phones can accept Cisco pre-standard PoE from a card integrated with a Cisco Catalyst switch or a Catalyst in-line power patch panel:
7910G + SW
These phones can draw local power from a power cube (CP-PWR-CUBE-2=) in addition to a country or regionally specific power cord (CP-PWR-CORD-xx=).
Q. What IP phone models support the IEEE standard method of powered device detection?
A. These Cisco IP phones support IEEE 802.3af PoE:
Note: These Cisco IP phones support both the Cisco pre-standard PoE and IEEE 802.3af PoE:
From this new doc;
Power over Ethernet (PoE) Power Requirements FAQ
Hope this helps and best of luck!