> ## Knowledge Base Index > Fetch the complete knowledge base index at: https://support.ntconnect.com/sitemap.xml > Use this file to discover available pages before exploring further. > Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash). # Grandstream GXP 2000 & GXV3000 Grandstream GXP2000, GXV3000: ![GXP2000](https://storage.crisp.chat/users/helpdesk/website/309e8a0a07431600/image_1qm3ycm.png) ![GXV3000](https://storage.crisp.chat/users/helpdesk/website/309e8a0a07431600/image_1kw6vej.png) STEP 1 You must first determine what IP address it received. To do this, press the round menu button, then the down arrow next to it until the display shows: [2] IP Addr Now, press the round menu button again and you will be shown the IP address of your device (e.g. 192.168.0.100) Note: The GXV3000 shows the IP address on boot-up on the video display. - STEP 2 Go to any browser equipped computer on your network and enter the address: http:/// (where is replaced by the address that was given to you in STEP 1. - STEP 3 You will be prompted to enter a password (the default is "admin"); then click the "Login" button. - STEP 4 Click on “Account 1” to configure your first line. SIP Server: sip.nettalk.com SIP User ID: Account Number provided on CONNECT Authenticate Password: Account Password provided on CONNECT User ID is phone number: NO Unregister on reboot: NO SIP Registration: YES SIP Port: 5060 Register Expiration: 5 (if in minutes, if in seconds please use 300) Send DTMF: via RTP (RFC2833) however via SIP may work as well. ![SIP Configuration](https://storage.crisp.chat/users/helpdesk/website/309e8a0a07431600/image_1cgu4gh.png)ec.png) - STEP 5 Click on the "Update" button at the bottom of the form. ![](https://storage.crisp.chat/users/helpdesk/website/309e8a0a07431600/image_1cav908.png) - STEP 6 (Optional) If you have a secondary NT Connect account, repeat STEP 4 for Account 2 or 3. May have to use secondary SIP port 5085 or 7060 for secondary accounts. STEP 7 (Optional) You can select Reboot to restart your Grandstream system. ![](https://storage.crisp.chat/users/helpdesk/website/309e8a0a07431600/image_mbjtr8.png)