Cisco
CompTIA
ISC
EC-Council
EXIN
Fortinet
ITIL
Juniper
Microsoft
VMware
Avaya
SAP
Google
NVIDIA
Salesforce
Amazon
Palo Alto Networks
ISC2
Splunk
ServiceNow
All Vendors
  2. Home
  3. Exams
  4. Cisco
  5. 300-815

Cisco 300-815 Exam
Implementing Cisco Advanced Call Control and Mobility Services (CLASSM) (Page 2 )

Updated On: 12-Feb-2026
Page 2 of 50
PDF with 245 Questions



Refer to the exhibit. In an active SIP call between phone user A and phone user B, phone A initiates a call transfer to phone user C. What are two results from this action? (Choose two.)

  1. Phone_A sends a SIP-REFER message to the Cisco UCM with Phone_C information in the Refer-To section.
  2. Phone_B sends a SIP-REFER message to the Cisco UCM with Phone_C information in the Refer-To section.
  3. As soon as Phone_A presses the Transfer button for the first time, Phone_B hears the MOH, and the MOH audio is chosen from Phone_B User Hold MOH Audio Source settings.
  4. As soon as Phone_A presses the Transfer button for the first time, Phone_B hears the music on hold, and the MOH audio is chosen from Phone_A Network Hold MOH Audio Source settings.
  5. As soon as Phone_A presses the Transfer button for the first time, Phone_B hears the MOH, and the MOH audio is chosen from Phone_A User Hold MOH Audio Source settings.

Answer(s): A,C





Refer to the exhibit. Users report that when they dial to Cisco Unity Connection from an external network, they cannot enter any digits. Assuming only in-band DTMF is supported, what is a reason for this malfunction?

  1. The negotiated RTP port is outside of the range described by RFC, so inband DTMFs do not work.
  2. There is SIP Delayed Offer. DTMF is supported only in Early Offer.
  3. The rtpmap:0 value for the negotiated codec is marking DTMF as inactive.
  4. No DTMF is negotiated.

Answer(s): D



An administrator is troubleshooting a one-way audio issue for a call that uses H.323 protocol in slow-start mode. The administrator requests that the IP and port information of the Real-Time Transport Protocol traffic that had the one-way audio call is provided. The H.225 and H.245 messages for one of the one-way audio calls are gathered and the call flow has not invoked any media resources.
Where is the RTP IP and port information for both sides found?

  1. H.245 Terminal Capability Set
  2. H.245 Open Logical Channel
  3. H.225 Connect
  4. H.245 Open Logical Channel Ack

Answer(s): B


Reference:

http://ccievoicehopeful.blogspot.com/2012/09/h323-notes.html



Which two extended capabilities must be configured on dial peers for fast start-to-early media scenarios (H.323 to SIP interworking)? (Choose two.)

  1. DTMF
  2. BFCP
  3. VIDEO
  4. FAX
  5. AUDIO

Answer(s): A,B



When an administrator troubleshoots H.323 call setup, which message gives an alert that the called party is being notified about the call?

  1. ALERTING
  2. PROCEEDING
  3. CONNECT
  4. RINGING

Answer(s): C






Post your Comments and Discuss Cisco 300-815 exam prep with other Community members:

Join the 300-815 Discussion