An engineer has added new SIP phones to the Cisco Unified Communications Manager and now can no longer get an outside dial tone when pressing the steering digit 9 for calling local or long distance…

Question

Options

• AEnsure the gateway long distance and local dial peers are being triggered on outbound calls.
• BCheck the dial plan to ensure that any new route patterns added in Cisco Unified CM do not start
• CVerify that the new phones added in Cisco Unified CM do not start with an extension of 9.
• DConfigure the outside dial tone of the new SIP phone

• A
  5% (1)
• B
  15% (3)
• C
  75% (15)
• D
  5% (1)

Explanation

The problem is a digit overlap conflict in the dial plan. When a user presses '9' to get an outside line, CUCM begins collecting digits and waits for more input using its interdigit timeout (T302 timer) before routing. If any newly added SIP phone has a Directory Number (DN) that begins with '9' (e.g., 9001, 9200), CUCM's digit analysis engine matches that '9' as a potential extension prefix and delays or blocks the call from hitting the route pattern for outside calls. The fix is to ensure no phone extensions start with 9. Option A addresses gateway dial peers, which is a separate concern. Option B is incomplete as written. Option D - configuring outside dial tone on individual SIP phones - is not how CUCM handles dial tone (it is configured on route patterns, not per phone).

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