Multiple SPA9000 Devices

darkerosxx

I don't know enough about voip yet. I'm going to start studying for CCNA Voice soon. I have a question, though:

The SPA9000 is Cisco's small business (Linksys) offering below the UC520 and also about 10% of the price of a UC520. It supports up to 16 Linksys or Cisco phones. Is it possible to have multiple SPA9000's in the same network? If not, is your only choice to upgrade to the UC520 to support more than 16 users?