What are two key features of the Expressway series? (Choose two.)
A . VPN connect toward the internal UC resources
B . B2B calls
C . IP to PSTN call connectivity
D . Device registration over the internet
E . SIP header modification
Answer: B,D
What are two key features of the Expressway series? (Choose two.)
A . VPN connect toward the internal UC resources
B . B2B calls
C . IP to PSTN call connectivity
D . Device registration over the internet
E . SIP header modification
Answer: B,D