To centrally deploy and upgrade eSpace IP phones in DHCP Option 246 mode, set Option246 of the DHCP server to ().

Question

Options

• AIP address segment
• BConfiguration file URL
• CPolicy file URL
• DHTTP Server IP address

• A
  9% (3)
• B
  17% (6)
• C
  71% (25)
• D
  3% (1)

Explanation

In DHCP Option 246 mode, Huawei eSpace IP phones use Option 246 to locate a policy file on the provisioning server. The policy file acts as a master orchestration document - it tells the phone which firmware version to download, which configuration files to apply, and in what order, making it the single control point for centralized deployment and upgrades.

Why the distractors fail:

• A (IP address segment): A network range is a DHCP pool concept, not a provisioning pointer - phones already have an IP by the time Option 246 is read.
• B (Configuration file URL): Configuration files hold device settings, but Option 246 specifically points to the policy file, which in turn references configuration files. Skipping the policy layer breaks the upgrade orchestration.
• D (HTTP Server IP address): A bare IP address isn't enough - the phone needs a full URL (including path and filename) to fetch the policy file. The HTTP server address is embedded within that URL.

Memory tip: Think of the policy file as a "playlist" - Option 246 gives the phone the URL of the playlist, and the playlist tells it what songs (firmware, configs) to download and in what order.

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