To Next PageTo Next PageWhat to do if Cisco IP Phone is unable to obtain IP address?
If your Cisco Unified IP Phone is unable to obtain an IP address, it might not be on the same network or VLAN as the DHCP server, or the switch port could be disabled. Ensure the network or VLAN has access to the DHCP server and that the switch port is enabled.
Why Cisco 7941G - Unified VoIP is not registering?
If the Cisco Unified IP Phone does not register with Cisco Unified Communications Manager, it might not be connected to the Ethernet network or registered with a Cisco Unified Communications Manager server. Ensure that the network is currently running.
Why does my Cisco IP Phone reset unexpectedly?
If your Cisco Unified IP Phone resets unexpectedly, first ensure the Ethernet connection is working. If the connection is active, investigate whether intermittent network outages are the root cause. Also, verify that the phone is properly configured to use DHCP, and check the DHCP lease duration. Ensure you've entered the correct settings for a static IP address and verify that you do not have a voice VLAN configuration.
How to troubleshoot Cisco 7941G - Unified VoIP that does not go through normal startup?
If your Cisco Unified IP Phone does not go through its normal startup process, it could be due to faulty cables, bad connections, network outages, or lack of power. Verify that the network port is functional and that the phone is receiving power. You can also try powering up the phone with the handset off-hook or performing a factory reset.
What to do if factory reset deleted 802.1X shared secret on Cisco IP Phone?
Introduces the Cisco Unified IP Phone models and their basic functionality.
Details the telephony and network device features supported by the IP phones.
Covers methods for adding phones to the CUCM database for management.
Provides step-by-step instructions for physically installing the IP phone.
Covers the steps for setting up security features on the IP phone.
Details options for viewing and changing network settings like IP, DNS, TFTP.
Provides access to sub-menus for non-network settings like CallManager and Security.
Displays and modifies security settings related to the phone.
Lists and describes supported telephony features and their configuration references.
Offers solutions for issues preventing the phone from starting up correctly.
Helps identify causes for phones resetting during calls or when idle.
Explains methods for resetting or restoring phone configurations to defaults.
General