How to Set Up the Cisco IP Phone 7800 and Cisco IP Phone 8800 Series IP Phones
This guide explains how to set up the Cisco IP Phone 7800 series and Cisco IP Phone 8800 series IP phones.
This guide will apply for the following handsets:
Cisco IP Phone 7811
Cisco IP Phone 7821
Cisco IP Phone 7841
Cisco IP Phone 7811
Cisco IP Phone 8861
Cisco IP Phone 8831
Cisco IP Phone 8832
Cisco IP Phone 8845
Cisco IP Phone 8851
Cisco IP Phone 8861
Cisco IP Phone 8865
For more information on the Cisco range of IP phones, please visit the Cisco phones product page.
Configuration
Obtain the handset IP address.
Press the page (Setup) button, scroll down to 9. Network and note the CurrentIP
Type the IP address into your web browser.
Once the page has loaded, press Admin Login then press advanced
Go to the SIP tab
Scroll down to
RTP Parameters and sets
RTP Packet Size to
0.020 This is often overlooked.
Scroll down to NAT Support Parameters and set Handle VIA rport and Insert VIA rport to no
Go to the Ext 1 tab (Or whichever Ext you are using)
Under General set Line Enable to yes
Under NAT Settings set NAT Mapping and NAT Keep Alive to yes
Under SIP Settings set SIP Transport to UDP
Under Proxy and Registration enter the following settings. You will need to reference your welcome pack.
Under Subscriber Information enter the following settings. You will need to reference your welcome pack.
Put your name into Display Name. What is entered here is arbitrary.
Put your SIP Username (extension number) into the User ID and Auth ID fields. This is provided in your welcome pack.
Put your provided SIP password (also referred to as SIP Secret) into the Password field. This is provided in your welcome pack.
Set Use Auth ID to yes
Under Audio Configuration set Preferred Codec to G711a or set to G722 if on SureVoIP Multi-User Hosted.
Put the following into
Dial Plan
([1234]xxx|0[1-9]xxxxxxxxxS0|0[1-9]xxxxxxxx|*09x|*9[78]S0|**[1234]xxxS0|*99[1234]xxxS0|999S0|112|101|111|116xxx|00xxx.|xxxxxxx.)
Click Submit All Changes
Once the phone has rebooted and is back online, go to the Info tab and scroll down to Ext 1 Status and check the Registration State shows Registered
Feature Keys
Line Keys
The line keys, along the display, can be programmed to allow you to select which line you wish to use to make a call (if you use your phone with more than one account).
Under the Phone tab, select which extension each line key should correspond to. You can give each a short name that will appear alongside the button on the display.
Or if you have buttons spare, they can be set up to be BLF + speed dial + call pickup buttons.
This allows you to monitor the state of another extension (if it is ringing, busy or available), quickly dial that extension, or pick up an extension that is ringing (and there is nobody there).
First, click the advanced button on the top-right.
Go to the Attendant Console tab
Go to the Phone tab
For each button you wish to use as a BLF+SD+CP key, set Extension to Disabled
Type in something short yet relevant into the Short Name field, such as the person's name
In Extended Function put in: fnc=sd+blf+cp;sub=XXXX@$PROXY
XXXX is the extension you wish to monitor
Alternatively, for Speed Dial only to an external number, simply put in: fnc=sd;ext=XXXXXXXXXXX@$PROXY
Where XXXXXXXXXXX is the number to dial.
When the monitored extension is available, it shows green. Red when on a call or busy. Blinking red when ringing. Orange if there is an error in the syntax.
It is highly recommended to remove any conflicting Vertical Service Activation Codes in the Regional tab. Simply clear them out and click Submit All Changes.
Please note that at least 1 line key is required for the actual line, otherwise your phone will be unable to function properly.
Voicemail
To program the Voicemail key to dial your voicemail, go to the Phone tab, and in the Voice Mail Number field put in *97
Additional Settings
These are optional settings, but are highly recommended to get the best experience out of your phone.
Set Time Servers
In System tab, under Optional Network Configuration
Use the above as an example as your system administrator may be able to provide you with your company's internal NTP servers.
In Regional tab, under Miscellaneous
Troubleshooting
If registration is failing, check over the settings entered above.
Ensure SIP ALG is disabled on your router. See this page for further information.
If the Status page shows timeout, check over your firewall settings.
If you are still having trouble registering, contact SureVoIP Technical Support.