Ok, here's a weird one.
I've attached a spa2000 to asterisk, and got the two phones to register
as exten 706 and 707.
I can call exten 708 (a cisco 7940) from 707 and everything works fine.
I can call exten 708 from 706 and everything works fine.
When I make a call to either 706 or 707 from any
When I make a call to either 706 or 707 from any phone, the phone
attached to the spa does not ring. However, if I pick up the appropriate
phone, the connection is made and normal conversation can take place.
I had the same problem with a Cisco 827-4V. It turned out that the
phones were fussy
