> ## 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.

# Germany (DE) Firewall Rules

## Voice Gateway

| Component                       | Protocol | Source IP | Source Port † | Allowed Destinations | Destination Port |
| :------------------------------ | :------- | :-------- | :------------ | :------------------- | :--------------- |
| Session Border Controller (SBC) |          |           |               |                      |                  |
| (Agent SBC)                     | TCP/UDP  | ANY       | ANY           | `3.70.125.14`        | 5060             |
|                                 | TLS      | ANY       | ANY           | `3.70.125.14`        | 5061             |
|                                 | TCP      | ANY       | ANY           | `3.70.125.14`        | 8443             |
|                                 | TCP/UDP  | ANY       | ANY           | `18.158.223.171`     | 5060             |
|                                 | TLS      | ANY       | ANY           | `18.158.223.171`     | 5061             |
|                                 | TLS      | ANY       | ANY           | `18.158.223.171`     | 8443             |
|                                 | UDP      | ANY       | ANY           | `3.70.125.14`        | 6000-65535       |
|                                 | UDP      | ANY       | ANY           | `18.158.223.171`     | 6000-65535       |

***

## Media Twilio Gateway

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

***

## FQDN

| Component     | Protocol | Source IP | Source Port † | Destination IP Ranges | Destination Port Range |
| :------------ | :------- | :-------- | :------------ | --------------------- | :--------------------- |
| Kore Domain   | TCP      | ANY       | ANY           | `*.kore.ai`           | 443, 8443              |
| Twilio Domain | TCP      | ANY       | ANY           | `*.twilio.com`        | 443, 8443              |

***

## Twilio STUN

| Component | Protocol       | Source IP | Source Port † | Destination IP Ranges             | Destination Port Range |
| :-------- | :------------- | :-------- | :------------ | :-------------------------------- | :--------------------- |
| ↳         | TCP (TURN TLS) | ANY       | ANY           | `18.156.18.128 - 18.156.18.255`   | 443/5349               |
| ↳         | TCP (TURN TLS) | ANY       | ANY           | `18.195.48.224 - 18.195.48.255`   | 443/5349               |
| ↳         | TCP (TURN TLS) | ANY       | ANY           | `52.59.186.0 - 52.59.186.31`      | 443/5349               |
| ↳         | TCP (TURN TLS) | ANY       | ANY           | `3.249.63.128 - 3.249.63.255`     | 443/5349               |
| ↳         | TCP (TURN TLS) | ANY       | ANY           | `54.171.127.192 - 54.171.127.255` | 443/5349               |
| ↳         | TCP (TURN TLS) | ANY       | ANY           | `52.215.127.0 - 52.215.127.255`   | 443/5349               |
| ↳         | TCP (TURN TLS) | ANY       | ANY           | `52.215.253.0 - 52.215.253.63`    | 443/5349               |
| ↳         | TCP (TURN TLS) | ANY       | ANY           | `18.156.18.128 - 18.156.18.255`   | 3478                   |
| ↳         | TCP (TURN TLS) | ANY       | ANY           | `18.195.48.224 - 18.195.48.255`   | 3478                   |
| ↳         | TCP (TURN TLS) | ANY       | ANY           | `52.59.186.0 - 52.59.186.31`      | 3478                   |
| ↳         | TCP (TURN TLS) | ANY       | ANY           | `3.249.63.128 - 3.249.63.255`     | 3478                   |
| ↳         | TCP (TURN TLS) | ANY       | ANY           | `54.171.127.192 - 54.171.127.255` | 3478                   |
| ↳         | TCP (TURN TLS) | ANY       | ANY           | `52.215.127.0 - 52.215.127.255`   | 3478                   |
| ↳         | TCP (TURN TLS) | ANY       | ANY           | `52.215.253.0 - 52.215.253.63`    | 3478                   |

***