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What to do if my Cisco 8841 displays an "Initialising Network" message constantly?
Check the connection from the handset to the router or switch to ensure it's receiving a signal. Swap out Cat 5 cables and check ports, as well as connections on all wires. Also, plug the handset into a different port that you know definitely works.
What to do if my Cisco IP Phone handset shows an on-screen extension but has an amber light?
First, ensure all router port settings have been implemented, paying special attention to port 5060 and ensuring SIP ALG is disabled. Next, eliminate LAN variables by plugging the handset directly into the router. If your router doesn't provide power over Ethernet, ensure the only thing between the router and the handset is the Power Over Ethernet switch, and that all wires and units function correctly. Also, verify the handset is still assigned to a user on the Horizon Portal. Finally, try plugging the handset into a different port that you know works.
What to do if my Cisco 8841 handset boots up with an amber light and no extension?
First, ensure all router port settings have been implemented, especially on port 5060, and make sure that SIP ALG is disabled. Check that you've assigned a local IP address by looking it up on the router's ARP cache. Eliminate LAN variables by plugging the handset directly into the router. If your router doesn't provide power over Ethernet, make sure the only thing between the router and the handset is the Power Over Ethernet switch and that all the wires and units are working correctly. Make sure the handset is still assigned to a user on the Horizon Portal. Finally, try plugging the handset into a different port that you know works.
General| Resolution | 800 x 480 pixels |
|---|---|
| Audio | Wideband audio |
| Bluetooth | No |
| Ethernet | 10/100/1000 Mbps |
| PoE | IEEE 802.3af compliant |
| Connectivity | Ethernet |
| Buttons | 4 programmable line keys |
| Speakerphone | Full-duplex speakerphone |
| Headset Jack | Yes, RJ9 |
| Codecs | G.711, G.722, G.729a, iLBC |
| Power Options | PoE |
| Network Interfaces | Dual Gigabit Ethernet ports |
| Security | Secure boot, 802.1X authentication, secure credential storage |
| Dimensions | 40 mm |
| Weight | 2.5 lb (1.1 kg) |
Covers phone connections for the Cisco IP Phone 8811 model.
Details the buttons and hardware for the Cisco IP Phone 8811 model.
Explains phone connections for the Cisco IP Phone 8841 model.
Details the buttons and hardware for the Cisco IP Phone 8841 model.
Covers phone connections for the Cisco IP Phone 8845 model.
Details the buttons and hardware for the Cisco IP Phone 8845 model.
Explains phone connections for Cisco IP Phone 8851 and 8851NR.
Details the buttons and hardware for Cisco IP Phone 8851 and 8851NR.
Covers phone connections for the Cisco IP Phone 8861 model.
Details the buttons and hardware for the Cisco IP Phone 8861 model.
Explains phone connections for the Cisco IP Phone 8865 model.
Details the buttons and hardware for the Cisco IP Phone 8865 model.
Instructions on how to make calls, including predialing and using the speakerphone.
How to answer the oldest available call, including handling hold reversion and park reversion calls.
Explains how to answer a coworker's ringing call using Pickup, Group Pickup, and Other Pickup.
Procedures for placing calls on hold, resuming calls, and transferring calls to other numbers.
How to add parties to a conference, join calls, and swap between calls before finalizing.
Configuring the phone for temporary use of different IP phones and handling calls on mobile devices.
Connecting securely to the corporate network off-site via Expressway and available phone features.
