When a user dials a telephone number from a Type A SIP phone. How are the digits analyzed by Cisco Unified Communications Manager if no SIP dial rules are configured?

Question

Options

• AWhen no dial rules are present, digits are sent to the Cisco Unified Communications Manager en
• BWhen no dial rules are present, digits are sent to the Cisco Unified Communications Manager
• CWith a Type A SIP phone the digits are only sent en bloc
• DIf there are no dial rules present and the user uses the Dial softkey the digits are sent to the Cisco

• A
  77% (33)
• B
  7% (3)
• C
  14% (6)
• D
  2% (1)

Explanation

Type A SIP phones (phones that collect digits locally before sending) send all dialed digits to CUCM as a complete string - en bloc - either when the user presses the Dial softkey or when the interdigit timeout expires. Without SIP dial rules configured, the phone has no instructions on when to send mid-dial, so it defaults to collecting and holding digits locally until one of those two triggers fires. CUCM then receives the full number and performs its standard digit analysis on the complete string. This is in contrast to Type B SIP phones or KPML-based behavior where digits can be forwarded incrementally as they are pressed.

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