Question 211

Refer to the exhibit.

Refer to the exhibit. The SDP offer/answer has been completed successfully but there is no DTMF when users press keys. What is the cause of the issue?
  • Question 212

    Which protocols does Cisco IM and Presence use to authenticate Jabber?
  • Question 213

    An engineer must configure a cisco ISR 4000 as an MGCP gateway to download its MGCP-specific configuration from cisco UCM. Which Cisco IOS configuration snippet accomplishes this task?
  • Question 214

    An engineer configures a Cisco UCM Survivable Remote Site Telephony (SRST) reference for a branch office. Which protocol does SRST use to allow phones to fail over and register with the local gateway during a WAN outage?
  • Question 215

    Which dial plan function restricts calls that are made by a lobby phone to internal extensions only?