> For the complete documentation index, see [llms.txt](https://prosbcdocs.telcobridges.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://prosbcdocs.telcobridges.com/tmedia-documentation/configuration/allocating-a-sip-open-network-access-point-nap.md).

# Allocating a SIP Open Network Access Point (NAP)

> **Applies to:** SBC 3.1, 3.3

You must allocate a SIP [NAP](https://github.com/telcobridges-main/tmedia-wiki/tree/main/reference/protocols/nap/README.md) for your system. To create a new NAP:

1-Click **NAPs** in the navigation panel

![NAP NavigationMenu](https://docs.telcobridges.com/w/images/3/38/NAP_NavigationMenu.png)

2-Click **Create New NAP**

![Create New NAP SIP](https://docs.telcobridges.com/w/images/2/26/Create_New_NAP_SIP.png)

2-Create the new NAP

* Enter a **name** for the NAP
* Click **Create**

![Create New NAP SIP1](https://docs.telcobridges.com/w/images/3/38/Create_New_NAP_SIP1.png)

3-Verify that the **NAP was successfully created** message appears

![Create New NAP SIP2](https://docs.telcobridges.com/w/images/f/f0/Create_New_NAP_SIP2.png)

#### Associate a SIP transport server with the new NAP

1-Select a **SIP Transport Server** from the **Available** list

2-Click **"<<"** to associate the SIP Transport Server with the NAP

![Create New NAP SIP3](https://docs.telcobridges.com/w/images/b/b7/Create_New_NAP_SIP3.png)

#### Disable proxy address

![Create New NAP SIP4 NoProxy](https://docs.telcobridges.com/w/images/0/0c/Create_New_NAP_SIP4_NoProxy.png)

#### Configure the Access Control List (ACL)

The ACL will determine which remote IP addresses will be allowed for incoming calls with this NAP.

Outgoing calls using this NAP will use the **Proxy address** in the NAP configuration. It will not use the IPs in the ACL.

1-Enter an **IP/MASK** (use 0.0.0.0/0 to accept any addresses)

2-Click **"<<"** to add in the list of Access Control

![Create New NAP SIP5 ACL](https://docs.telcobridges.com/w/images/7/72/Create_New_NAP_SIP5_ACL.png)

#### Associate a Port range with the new NAP

1-Select a **port range** from the **Available** list

2-Click **"<<"** to associate the Port range with the NAP

![Create New NAP SIP5](https://docs.telcobridges.com/w/images/5/51/Create_New_NAP_SIP5.png)

#### Associate a SIP Domain with the new NAP (optional)

1-Select a **sip domain** from the **Available** list

2-Click **"<<"** to associate the SIP Domain with the NAP

![Create New NAP SIP7](https://docs.telcobridges.com/w/images/1/1e/Create_New_NAP_SIP7.png)

#### Configure settings for the following parameter groups as required

* Registration Parameters
* Authentication Parameters
* Network Address Translation
* SIP-I Parameters
* Advanced Parameters

1- Click **Save**

![Create New NAP SIP6 NoProxy](https://docs.telcobridges.com/w/images/9/9a/Create_New_NAP_SIP6_NoProxy.png)


---

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