I have a dummy question. I have a customer that want to by a Cisco 7985G IP Phone registered to a Cisco CallManager 6.1 and I don't know what to offer. The CP-7985-PAL + 6 x ULs are all I need to register CallManager 6.1? If yes what is the reason of CP-7985-PAL-CH1 witch if more expensive?
Can you provide some documentation related to this subject?
Thank you in advance,