> For the complete documentation index, see [llms.txt](https://docs.cebodtelecom.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cebodtelecom.com/overview/gs-wave.md).

# GS Wave

Follow these steps to create a new extension and configure. To configure the SIP extension, you will need the following. 

1. Extension, Username, Domain and Password. Use an existing extension or create a new.
2.  iPhone or Android Phone.
3. Download the Grandstream Wave from the App Store. 
4. iPhone or Android Phone.
5. Configure the Phone app.

**Create Extension** 

* Login in your account. Go to *Phone Numbers* -> *Users and Extensions.*
* Create a new Extension, Click on **"Add New".**

![](/files/-L_rl5AmgMwtIfhNEb1h)

* Fill the Form with Extension number (it must be new 3-5 digit numbers), *Name, Last Name,* and *Email*. Select the *Company number*. This will be the caller ID, when the extension dials outside.

![](/files/-L_rlJxkBEDMy8B5LsD9)

* Click on *Create* and the new user extension is ready to use. Password will be emailed to main admin email account.

![](/files/-LaaXVPoiq0rSywqQ1LM)

* You can get the domain from *Tools/Settings -> Global settings* and click on **"Get Customer Domain"**.
* You can see that the new extension is created in the portal.

![](/files/-LaaM0FTJZ-Fuqzm9772)

**Configuring the Grandstream Phone App** 

1.Download Grandstream Phone App for iPhone or Android.

<div align="center"><img src="/files/-La_g4SfjgAqBPzH7d7X" alt=""></div>

![](/files/-La_gBf4bHRcCUPAmOi_)

2.Open the App and go to **Settings**.

![](/files/-La_g_dgzgtnEJ8KqpdO)

3.Click on **Account Settings** and then click on **(+)** on top right.&#x20;

![](/files/-La_gffkpJc7eyJExCgy)

4.Click on **SIP Account**

![](/files/-La_gmlA5sNN_AHADiX0)

5.Configure SIP Account&#x20;

* **Account Name:** Choose any name or extension number. To explain, we used extension number 116.
* **SIP Server:** This is your main account name. (All words should be in lowercase)&#x20;
* **SIP User ID:** Choose any extension number to configure. For example, 116.
* **SIP Authentication ID:** Same as SIP User ID.
* **Password:** Password that you received through email. Password must be hidden.&#x20;
* **Voicemail User ID:** Same as SIP User ID.

Once all the information is entered, click on **✓** in the top right corner

![An Example SIP Account.](/files/-La_gsfMkDsPWbl5h30G)

6.Go back to the account settings and your account should be configured. First, the dot will be **Red** and then it should turn **Green**.&#x20;

If it doesn’t turn green after few seconds, please check your internet connection or SIP server/ password entered.

![](/files/-La_h3z1QIT2Yxtpafj_)

![](/files/-La_kLzkWEmu0Yi7eVco)

7.To make sure its configured with the phone system, dial your own extension and should hear the prompt, “Please enter you password”. Default voicemail password is same as extension.