# Allocating a SIP Open Network Access Point (NAP)

You must allocate a SIP [NAP](https://prosbcdocs.telcobridges.com/appendices/appendix-a-glossary/glossary-nap) for your system. To create a new NAP:

1-Click NAPs in the navigation panel

<figure><img src="https://docs.telcobridges.com/w/images/3/38/NAP_NavigationMenu.png" alt=""><figcaption></figcaption></figure>

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2-Click Create New NAP

<figure><img src="https://docs.telcobridges.com/w/images/2/26/Create_New_NAP_SIP.png" alt=""><figcaption></figcaption></figure>

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2-Create the new NAP

* Enter a name for the NAP
* Click Create

<figure><img src="https://docs.telcobridges.com/w/images/3/38/Create_New_NAP_SIP1.png" alt=""><figcaption></figcaption></figure>

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3-Verify that the NAP was successfully created message appears

<figure><img src="https://docs.telcobridges.com/w/images/f/f0/Create_New_NAP_SIP2.png" alt=""><figcaption></figcaption></figure>

#### 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

<figure><img src="https://docs.telcobridges.com/w/images/b/b7/Create_New_NAP_SIP3.png" alt=""><figcaption></figcaption></figure>

#### Disable proxy address

<figure><img src="https://docs.telcobridges.com/w/images/0/0c/Create_New_NAP_SIP4_NoProxy.png" alt=""><figcaption></figcaption></figure>

#### 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.<br>

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

<figure><img src="https://docs.telcobridges.com/w/images/7/72/Create_New_NAP_SIP5_ACL.png" alt=""><figcaption></figcaption></figure>

#### 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

<figure><img src="https://docs.telcobridges.com/w/images/5/51/Create_New_NAP_SIP5.png" alt=""><figcaption></figcaption></figure>

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#### 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

<figure><img src="https://docs.telcobridges.com/w/images/1/1e/Create_New_NAP_SIP7.png" alt=""><figcaption></figcaption></figure>

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

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

1- Click Save

<figure><img src="https://docs.telcobridges.com/w/images/9/9a/Create_New_NAP_SIP6_NoProxy.png" alt=""><figcaption></figcaption></figure>