A technician is using the `list trace station ` command in Communication Manager (CM) SAT to troubleshoot a call failure for a SIP station. The trace shows a `denial event 1191: ISDN/SIP anl-no far end aud`. What is the most likely cause of this error?
A system administrator observes that a newly deployed Avaya Session Border Controller for Enterprise (ASBCE) is not processing SIP traffic. During a health check, the administrator runs the `ipcs` command on the ASBCE command line. What is the primary purpose of using this command in a troubleshooting context?
A support engineer is troubleshooting an issue where calls from a SIP trunk provider are failing to reach internal Avaya Aura endpoints. A TraceSM capture on the Session Manager shows the incoming INVITE from the provider's SBC is being rejected with a `403 Forbidden` error. The PPM log for the call indicates the reason is `No Route`. The SIP trunk is configured correctly and shows as in-service. Which of the following is the most probable cause for this specific error message?
A company has a requirement to prevent toll fraud by blocking calls to international premium-rate numbers. Which Avaya Aura component and feature is best suited to implement this policy based on dialed number patterns? (Select TWO)
True or False: In a geographically distributed Avaya Aura environment, it is a best practice to configure a unique Communication Manager Network Region for each physical site, even if the sites share the same WAN link characteristics and codec requirements.
A financial services company is deploying a new Avaya Aura 8.x environment with a core data center and several branch offices. The security team mandates that all SIP signaling traffic between the Session Manager in the data center and the SIP endpoints in the branch offices must be encrypted. Additionally, they require that the identity of the Session Manager is cryptographically verified by the endpoints before they register. To meet these requirements, the support engineer must configure the Session Manager's SIP Entity Link to use a specific transport protocol. The engineer has already ensured that the Session Manager's identity certificate is signed by a trusted Certificate Authority and has been installed correctly. The branch office endpoints are all capable of supporting this secure transport method. Which transport protocol must be selected in the SIP Entity Link configuration on System Manager to fulfill both the encryption and server identity verification requirements?
When configuring Call Admission Control (CAC) in Avaya Aura, a support engineer needs to define the bandwidth limits for a specific WAN link. The command `change ____ 1` is used in Communication Manager's SAT to access the configuration page for this purpose.
A support technician is reviewing the survivability configuration for a branch office. The branch has a G450 Media Gateway with an S8300 LSP (Local Survivable Processor). During a WAN failure, phones at the branch should register to the LSP and have basic calling capabilities. Which two elements are essential for the SIP phones at the branch to successfully failover to the LSP? (Select TWO)
During a routine audit of an Avaya Aura system, a support engineer discovers that the trust relationship between System Manager (SMGR) and a Session Manager (SM) instance is broken. The SM is showing an alarm related to certificate validation. What is the most direct and recommended first step to resolve this issue?
A user reports that when they transfer a call that came from a SIP trunk, the original external caller ID is replaced with the user's internal extension number. The desired behavior is for the original caller ID to be preserved on the transferred call. Which setting is most likely misconfigured?