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You notice that the Entity_Link between your Session Manager and Communication Manager is down. From Communication Manager, which four commands can be used to verify the health of this SIP link? (Choose four.)

When a call is made between two Avaya SIP Telephones (AST) users, Session Manager processes the call through various phases. What is the maximum number of phase tags that Session Manager uses, and what are they called?

A remote worker using the Avaya Communicator on a mobile phone obtains a private IP address delivered from the corporate network over WiFi when in range of the wireless hot-spot. When the remote worker is out of range of the corporate WiFi, it obtains a Public IP address via the 3G/4G mobile Service Provider. What strategy prevents the user from having to change the SIP Proxy Server address in the smartphone when roaming between the public and corporate private networks?

Which four traces options can be useful when troubleshooting SIP endpoint registration issues with a phone using TCP protocol? (Choose four.)

SIP user 1011111 and SIP user 1011112 are both based on the same Session Manager with access to a CM Evolution server. Given the following actions: Session Manager searches for the called party in the SIP registry, finds it, registers it and routes the call to it. SIP user 1011111 calls SIP user 1011112, and an Invite request is sent to Session Manager. Session Manager verifies SIP user 1011111 in the SIP registry and authenticates it. Session Manager checks the SIP user's profile for sequenced applications and (in this example) routes the request to Communication Manager. Endpoints negotiate codecs and media, and RTP is sent between endpoints. Communication Manager receives the request from Session Manager, carries out full-call model processing for both endpoints, and routes the call back to Session Manager. If 1011111 makes a call to 1011112, in which order will the actions take place?