Which two SIP issues should be considered when deploying KPML? (Choose two.)

Question

Options

• AAdditional MTP resources will be required.
• BThere will be significantly more signaling traffic on the network.
• CAdditional configuration steps will be required for SIP phone dial rules.
• DSocial engineering will be required to educate users about how to dial a call with SIP.
• EThere will be additional processing demands on the Cisco Unified Communications Manager

• A
  13% (6)
• B
  78% (35)
• C
  7% (3)
• D
  2% (1)

Explanation

KPML (Key Press Markup Language) is a SIP mechanism where each key press on the phone's keypad generates an individual SIP SUBSCRIBE/NOTIFY or SIP INFO message sent to CUCM for digit-by-digit analysis, rather than the phone collecting all digits and sending a single message. This has two notable impacts: (B) Each keystroke produces a separate SIP signaling message, dramatically increasing signaling traffic volume compared to en-bloc dialing; and (E) CUCM must process each individual digit event as a separate SIP transaction, increasing CPU and processing load on the call manager. These are important scalability considerations in large SIP deployments.

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