Asterisk, Panasonic & Auto-Answer? Can this be done?

Hi,

I bought a KX-TGP551 IP corded phone with cordless extensions.

panasoniccloud.com/wp-conten … nglish.pdf

Is it possible to add a SIP header to enable auto answering?

I have a number of cisco phones that are all set to auto answer, and it is nice to dial an extension, have the phone pickup without anyone touching anything.

I tried to add the Panasonic phones into my intercom group but all that happens is the phones ring without any auto answer.

Is there any shot to make it work with an auto answer?

Thanks,
Rich