You notice that the Entity_Link between your Session Manager and Communication Manager is down. From Communication Manager, which two command are used to verify the health of this SIP link? (Choose…

Question

Options

• AList trace station
• BStatus signaling group
• CStatus trunk
• DStatus health
• Estatapp

• A
  2% (1)
• B
  76% (32)
• D
  7% (3)
• E
  14% (6)

Explanation

Status signaling group (B) directly shows the state of the SIP signaling group connecting CM to Session Manager - if the Entity_Link is down, this command will report the signaling group as out-of-service. Status trunk (C) complements this by showing whether individual trunk members in the SIP trunk group are in-service, which reflects the same link failure at the bearer level. Together, they give you both the signaling-plane and trunk-plane view of the same downed link.

Why the others are wrong:

• A (list trace station): Traces call activity for a specific extension - irrelevant to link health.
• D (status health): Not a valid Communication Manager command for SIP diagnostics.
• E (statapp): This is a Session Manager Linux shell command, not a Communication Manager command - it checks SM application status from the SM side, not from CM.

Memory tip: Think "Signal the Trunk" - the two status commands you run from CM to check a SIP Entity_Link are always signaling-group and trunk, one for the control plane and one for the bearer plane.

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