To Next PageTo Next PageWhy Cisco IP Phone cannot obtain IP address?
If a Cisco Unified IP Phone cannot obtain an IP address, make sure that the network or VLAN to which the phone is connected can access the DHCP server, and that the switch port is enabled.
How to troubleshoot Cisco 3905 if it does not go through normal startup process?
To troubleshoot a Cisco Unified IP Phone that isn't starting up normally, systematically check for common issues such as faulty cables, bad connections, network outages, or power problems. This helps determine if the phone itself is functional.
What to do if a phone call cannot be established on Cisco 3905 IP Phone?
If a phone call cannot be established on your Cisco IP Phone, ensure the Ethernet cable is properly attached. The inability to establish a call can occur if the phone does not have a DHCP IP address or cannot register with Cisco Unified Communications Manager.
How to check physical connection problems with Cisco 3905?
To solve physical connection problems with your Cisco Unified IP Phone, verify that the Ethernet connection to which the phone connects is active.
What to do if configuration file corruption occurs on Cisco IP Phone?
To resolve configuration file corruption on your Cisco IP Phone, create a new phone configuration file.
How to fix static IP address settings errors on Cisco IP Phone?
If the Cisco IP Phone is assigned a static IP address, verify that you have entered the correct settings.
Why is the speech choppy on my Cisco 3905?
If you are experiencing choppy speech on your Cisco IP Phone, check the AvgJtr and the MaxJtr statistics. There may be a mismatch in the jitter configuration.
What to do if Cisco 3905 IP Phone cannot connect to TFTP Server or to Cisco Unified Communications Manager?
Ensure that the network is currently running, so that the Cisco IP Phone can connect to the TFTP server or to Cisco Unified Communications Manager.
How to troubleshoot audio problems with no speech path on Cisco 3905 IP Phone?
Check the configuration of routers and switches to ensure that IP connectivity is properly configured on your Cisco IP Phone.
Does voice VLAN setup affect Cisco IP Phone?
Isolating the phones on a separate auxiliary VLAN increases the quality of the voice traffic on your Cisco IP Phone.
General| Speakerphone | Yes |
|---|---|
| Ethernet Switch | No |
| Handset | Standard |
| Protocol Support | SIP |
| Lines | 1 |
| Headset Port | No |
| Power over Ethernet (PoE) | IEEE 802.3af Class 1 |
| Ethernet Ports | 2 |
