350-801 · Question #282
Which type of input is required when configuring a third-party SIP phone?
The correct answer is A. digest user. Third-party SIP phones cannot be identified by MAC address the same way Cisco IP phones are, because Cisco UCM does not have built-in device profiles for non-Cisco hardware. Instead, they authenticate using SIP Digest Authentication. A 'Digest User' (a user account with…
Question
Which type of input is required when configuring a third-party SIP phone?
Options
- Adigest user
- Bserial number
- Cmanufacturer
- Dauthorization code
How the community answered
(31 responses)- A90% (28)
- B6% (2)
- C3% (1)
Explanation
Third-party SIP phones cannot be identified by MAC address the same way Cisco IP phones are, because Cisco UCM does not have built-in device profiles for non-Cisco hardware. Instead, they authenticate using SIP Digest Authentication. A 'Digest User' (a user account with credentials) must be created and associated with the phone so UCM can challenge and verify the device's identity via the SIP 401 Unauthorized / WWW-Authenticate mechanism. Serial number and manufacturer are not fields UCM uses for SIP authentication, and authorization codes are a call-routing feature unrelated to device registration.
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