Cisco IP phone losing network connectivity intermittently? Learn why checking the Ethernet cable and switch port is the first troubleshooting step, crucial for Cisco Certified Field Technician (CCT) exam success.
Table of Contents
Question
A Cisco IP phone loses network connectivity intermittently. What should be checked first?
A. Ethernet cable and switch port
B. Voicemail settings
C. CUCM registration logs
D. Phone’s audio settings
E. Router’s NAT table
Answer
A. Ethernet cable and switch port
Explanation
If the network connection is unstable, the Ethernet cable and switch port should be checked for faults or loose connections.
The first step when a Cisco IP phone experiences intermittent network connectivity is to check the Ethernet cable and switch port. Physical layer issues, such as faulty cables, loose connections, or problematic switch ports, are common causes of unstable connectivity. Ensuring the Ethernet cable is securely connected and undamaged, and verifying the switch port is operational, helps quickly identify or eliminate hardware faults as the root cause.
- Intermittent connectivity often results from physical connection problems, including damaged cables, bad connectors, or failing switch ports.
- Testing with a known-good cable or port, and bypassing patch panels if possible, isolates the issue to either the cable or the switch hardware.
- If the physical connection is not stable, the phone will repeatedly lose and regain network access, impacting both data and voice traffic.
Checking the cable and switch port is the most effective first step to resolve intermittent network connectivity on Cisco IP phones.
Cisco Certified Field Technician (CCT) certification exam practice question and answer (Q&A) dump with detail explanation and reference available free, helpful to pass the Cisco Certified Field Technician (CCT) exam and earn Cisco Certified Field Technician (CCT) certification.