210-065 · Question #311
When you sign in at jabber what is the SIP message are used?
The correct answer is A. REGISTER. When Cisco Jabber signs in to a SIP registrar such as CUCM, it uses the SIP REGISTER method to bind its SIP URI to its current network address.
Question
When you sign in at jabber what is the SIP message are used?
Options
- AREGISTER
- BNOTIFY
- CREFER
- DINFO
How the community answered
(24 responses)- A88% (21)
- B8% (2)
- C4% (1)
Why each option
When Cisco Jabber signs in to a SIP registrar such as CUCM, it uses the SIP REGISTER method to bind its SIP URI to its current network address.
The SIP REGISTER method, defined in RFC 3261, is the specific message a user agent client sends to a registrar server to advertise its current contact address and authenticate itself. When Jabber signs in, it sends a REGISTER request to CUCM or the configured SIP proxy so that incoming calls can be routed to the correct device and address.
NOTIFY carries event-state information to a subscriber within an established subscription and is not used for initial client sign-in.
REFER requests that the recipient transfer a call to a third party and has no role in the authentication or registration process.
INFO transports application-specific information within an active session and is not involved in the sign-in or registration flow.
Concept tested: SIP REGISTER method for Jabber client sign-in
Source: https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/12_5_1/systemConfig/cucm_b_system-configuration-guide-1251/cucm_b_system-configuration-guide-1251_chapter_0100001.html
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