Study tips 642-437

Which codec supports VAD and CNG?

Which command should you use when checking for phone registration status or verifying button assignments?

Which option inside DHCP pool configuration gives a TFTP server to a Cisco IP phone?

Which two signaling methods are supported on Cisco FXO and FXS ports?

Which media resource requires hardware digital signal processors?

Which four commands are used to configure VoIP dial peers?

Which four are critical functions that are performed by the Cisco Unified Border Element?

Which command allows verification of RSVP configuration?

What is the function of the command crypto pki trustpoint name when you are configuring Cisco Unified Border Element for SRTP-RTP Internetworking?

Which four voice and video issues are caused by the absence of QoS?