Welcome to the Cisco Networking Professionals Ask the Expert conversation. This is an opportunity to learn more about Cisco Small Business products With Nelson Seto.Nelson is a Tech Support Engineer for the small business product line of PBX, ATA and IP Phones.His experience includes SPA9000/400, ATA’s such as PAP2T/SPA2102/3102/8000 and the phones which are the SPA9xx series and SPA5xx series. He has been in this position at Cisco for almost 5 years assisting our field engineers, sales engineers and service providers.
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can ATAs be configured with certificates so I can establish secure connection with my CUCM (in HQ, behind the firewall) even if ATA is on public network? Which signaling protocols are supported by those ATA's?
P.S. If you are not familiar with CUCM can you let us know if it is working with your IPPBX?
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