> ## Documentation Index
> Fetch the complete documentation index at: https://koreai.mintlify.app/llms.txt
> Use this file to discover all available pages before exploring further.

# United States (US) Firewall Rules

## AudioCodes

|                                                          | Your Intranet |           | Allowed Destinations |                  | Destination Port |
| :------------------------------------------------------- | :------------ | :-------- | :------------------- | :--------------- | :--------------- |
|                                                          | Protocol      | Source IP | Source Port †        | Destination\*    |                  |
| **Session Border Controller (SBC) (Automation, HA SBC)** | TCP/UDP       | ANY       | ANY                  | `54.161.251.110` | 5060             |
|                                                          | TLS           | ANY       | ANY                  | `54.161.251.110` | 5061             |
|                                                          | TCP           | ANY       | ANY                  | `54.161.251.110` | 10081            |
|                                                          | UDP           | ANY       | ANY                  | `54.161.251.110` | 6000-65535       |
| **Session Border Controller (SBC) (Agent SBC)**          | TCP/UDP       | ANY       | ANY                  | `52.4.142.107`   | 5060             |
|                                                          | TLS           | ANY       | ANY                  | `52.4.142.107`   | 5061             |
|                                                          | UDP           | ANY       | ANY                  | `52.4.142.107`   | 6000-65535       |
|                                                          | TCP           | ANY       | ANY                  | `52.4.142.107`   | 10081            |

***

## Voice Gateway

|                                                 | Protocol | Source IP | Source Port † | Destination\*    | Destination Port |
| :---------------------------------------------- | :------- | :-------- | :------------ | :--------------- | :--------------- |
| **Session Border Controller (SBC) (Agent SBC)** | TCP/UDP  | ANY       | ANY           | `3.224.189.218`  | 5060             |
|                                                 | TLS      | ANY       | ANY           | `3.224.189.218`  | 5061             |
|                                                 | WSS      | ANY       | ANY           | `3.224.189.218`  | 8443             |
|                                                 | TCP/UDP  | ANY       | ANY           | `35.174.41.205`  | 5060             |
|                                                 | TLS      | ANY       | ANY           | `35.174.41.205`  | 5061             |
|                                                 | WSS      | ANY       | ANY           | `35.174.41.205`  | 8443             |
|                                                 | UDP      | ANY       | ANY           | `44.215.230.111` | 6000-65535       |
|                                                 | UDP      | ANY       | ANY           | `54.210.75.166`  | 6000-65535       |
| public FQDN                                     |          |           |               | `*.kore.ai`      | 443              |
| public FQDN                                     |          |           |               | `*.twilio.com`   | 443              |

***

## STUN SERVER & MEDIA RELAY

| Secure Media (ICE/STUN/SRTP) Edge Locations | Protocol | Source IP | Source Port † | Destination IP Ranges | Destination Port Range |
| :------------------------------------------ | :------- | :-------- | :------------ | :-------------------- | :--------------------- |
| Media                                       | UDP      | ANY       | ANY           | `168.86.128.0/18`     | 10000-65535            |

***

## Twilio STUN

|    | Protocol        | Source IP | Source Port † | Destination IP Ranges             | Destination Port Range |
| :- | :-------------- | :-------- | :------------ | :-------------------------------- | :--------------------- |
|    | TCP (TURN TLS)  | ANY       | ANY           | `34.203.254.0 - 34.203.254.255`   | 443/5349               |
|    | TCP (TURN TLS)  | ANY       | ANY           | `54.172.60.0 - 54.172.61.255`     | 443/5349               |
|    | TCP (TURN TLS)  | ANY       | ANY           | `34.203.250.0 - 34.203.251.255`   | 443/5349               |
|    | TCP (TURN TLS)  | ANY       | ANY           | `3.235.111.128 - 3.235.111.255`   | 443/5349               |
|    | TCP (TURN TLS)  | ANY       | ANY           | `34.216.110.128 - 34.216.110.159` | 443/5349               |
|    | TCP (TURN TLS)  | ANY       | ANY           | `54.244.51.0 - 54.244.51.255`     | 443/5349               |
|    | TCP (TURN TLS)  | ANY       | ANY           | `44.234.69.0 - 44.234.69.127`     | 443/5349               |
|    | TCP, UDP (TURN) | ANY       | ANY           | `34.203.254.0 - 34.203.254.255`   | 3478                   |
|    | TCP, UDP (TURN) | ANY       | ANY           | `54.172.60.0 - 54.172.61.255`     | 3478                   |
|    | TCP, UDP (TURN) | ANY       | ANY           | `34.203.250.0 - 34.203.251.255`   | 3478                   |
|    | TCP, UDP (TURN) | ANY       | ANY           | `3.235.111.128 - 3.235.111.255`   | 3478                   |
|    | TCP, UDP (TURN) | ANY       | ANY           | `34.216.110.128 - 34.216.110.159` | 3478                   |
|    | TCP, UDP (TURN) | ANY       | ANY           | `54.244.51.0 - 54.244.51.255`     | 3478                   |
|    | TCP, UDP (TURN) | ANY       | ANY           | `44.234.69.0 - 44.234.69.127`     | 3478                   |

***