# Register IP desk phone

To register to your [Connection](/components/connection.md) on [VoIP Number](https://app.voipnumber.net/dashboard) you need your Connection's `SIP user` and `SIP password` (you find them on your Connections tab at <https://app.voipnumber.net/connections>). The SIP domain name (you need that for your devices) is always the same: `sip.voipnumber.net` .

<figure><img src="/files/WlQb05lJrGhJyNSVu3nF" alt=""><figcaption><p>Find your Connection's SIP user and password.</p></figcaption></figure>

## Yealink T34W

`Yealink T34W` is a very nice wireless (and also wired PoE capable) desk `IP phone` that really shines if you ever dealt with some older desk phones like the Cisco 7960. Where's the difference? Mostly in configuration, and provisioning. To start using `Cisco`, it had to be on wire, and you had to load it with configuration through TFTP (for that you had to patch DHCP on your network to tell DHCP clients where is TFTP server, so they would download configs from there). And if you would like to change anything you had to change text config files and upload them to TFTP 😳

💡 With this Yealink wireless phone, you do not need to stay on the Ethernet cable and you can change settings easily straight from your browser, by visiting url of Yealink's web server (this is running on your Yealink phone just when you start it).

💡 Plus, it supports the G722 codec yielding voice of better quality (*wideband*, 16 kHz sampling rate) which will let you to take advantage of crystal clear voice available on VoIP Number (we also support codecs with even higher quality for [HD voice](/features/hd-voice.md), up to 48 kHz, that's DVD audio quality 📀).

<figure><img src="/files/EcrfHoisuhPhTi5jKqT0" alt=""><figcaption><p>Yealink T34W.</p></figcaption></figure>

## Registering Yealink T34W  to VoIP Number

If you haven't already, go to [Connection](/components/connection.md) to see how to create a Connection on [VoIP Number](https://app.voipnumber.net/dashboard). You need your Connection's details (`SIP User` and `Password`).

1. Plug in your `phone` to the power source.
2. Yealink will find your `Wi-Fi`. Help it a bit by disclosing your `password` and Yealink will get you online immediately.
3. Find its IP address (Menu -> Status -> IPv4).
4. Open `https://{ip of your yealink}` in your browser and accept the warning if it gets displayed. The default user/password is **admin/admin.**
5. Go to Accounts and set up any of them with your VoIP Number's [Connection](/components/connection.md) data:
   1. Use Connections's `SIP User` for all: Display Name, Register Name, Username on Yealink.
   2. Use Connection's `SIP Password` for Password on Yealink.
   3. Use `sip.voipnnumber.net` for SIP Server Host on Yealink, use port 5060.
6. Set transport to **TCP** (UDP may not work behind your firewall/router without extra configuration).&#x20;
7. Click `CONFIRM` .

<figure><img src="/files/Ms55gdN7SujjIj4r2uHj" alt=""><figcaption><p>Obtaining IP address.</p></figcaption></figure>

✅ All done!

### Troubleshooting

If you are behind a non standard NAT and you have troubles connecting, experiment with `STUN` and `rport` settings. It should be disabled by default and it should also be disabled if you use VPN, but you may find it working in particular scenarios.

<figure><img src="/files/3mHg4DW0Q8MrziA4gMKc" alt=""><figcaption><p>Set TCP for SIP transport. In case of troubles with connecting from behind a NAT experiment with STUN and rport.</p></figcaption></figure>

<figure><img src="/files/bIpriqAOYtq3XrXijA2Y" alt=""><figcaption><p>You will see green icons telling you that your <code>SIP</code> accounts are registered to Connections on VoIP Number and ready to place calls.</p></figcaption></figure>


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.voipnumber.net/guides/register-ip-desk-phone.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.