We have a customer that will be deploying a uc540 at his main office and will be using a T1 line from Bandwidth.com for both his voice(sip trunk) and internet. We were going to connect the uc540 directly to Bandwidth's router. There will be one staff member working out of their remote office. We are required to set up a site to site vpn between the main office and the remote office. The remote office will have a Cisco phone that needs to be an extension on the uc540 and they will also be transferring files between offices. Is this supported now? Is it supported in cca? It seems like all of the documentation show an additional sr520 at the main office for one vpn endpoint. I would just like to use the uc540 for the vpn endpoint.