How to Edit a Sip Trunk

Voice over Internet Phone service providers use Session Initiation Protocol, or SIP, to provide customers with access to the private broadband telephone network. SIP includes server information as well as address, username and password and other information needed to access VoIP networks. SIP information stored in hardware or software IP phones ensures that calls route through the correct network before connecting to external VoIP phones or landline telephone systems. If you switch VoIP services or providers, you must edit the SIP settings before you can use your phones to place or receive calls on the new network. Difficulty: Moderate Instructions Things You'll Need: VoIP service provider SIP settings Reconfigure Software SIP Phones Launch the software VoIP phone application on your computer Click the "File" or "Tools" menu or tool bar link. Click the "Preferences" or "Settings" menu option to enter the software phone configuration or settings utility. Enter the new username and password assigned to you by the new VoIP telephone service provider. Replace the entry in the "External Server," "VoIP Server IP Address" or "SIP Server" field with the public IP address of the new provider's SIP site IP address. Save the configuration settings and exit the application. Restart the software phone program and wait for the application to connect and authenticate with your new VoIP provider's SIP server. After the software establishes the connection, use the software VoIP phone to place and receive calls via the provider's server on the internet Change SIP Settings on a Hardware IP Phone Unplug the AC power adapter from the hardware IP phone and leave it disconnected for about 30 seconds. Reconnect the AC adapter and power on the IP telephone. Wait for the hardware IP phone to initialize and for the configuration IP address to appear on the phone's display screen. The IP address should be similar to "192.168.1.101." Go to a computer connected to the same router as the hardware IP phone. Open a web browser application and browse to the IP address displayed on the phone. Enter the username and password and log in to the IP phone's web-based configuration utility. Click the "IP Settings," "SIP Settings" or "VoIP Account Settings" link in the configuration utility. Replace the entries for the VoIP account username and password, SIP server name and SIP server IP address with those provided to you by the new VoIP service provider. Click "OK" or "Update." Wait while the configuration utility downloads the account changes to the hardware IP phone. Reboot the IP phone when prompted to do so. Wait for the IP phone to boot and connect to the new VoIP network. Use the hardware IP phone to place and receive calls using the new VoIP provider's network.