> ## Documentation Index
> Fetch the complete documentation index at: https://docs.vobiz.ai/llms.txt
> Use this file to discover all available pages before exploring further.
# IP Address Whitelisting
> Whitelist these IP addresses on your firewall to ensure uninterrupted SIP signaling, RTP media, and callback delivery between your infrastructure and Vobiz.
10 IP addresses · Port 5060/5061
7 entries · UDP 6000–65535
3 IP addresses · HTTPS 443
**Important:** IP addresses are subject to change. Always verify the latest list with the Vobiz team before making firewall changes. Contact [support@vobiz.ai](mailto:support@vobiz.ai) to subscribe to IP change notifications.
## SIP Signaling
Allow inbound and outbound SIP traffic from these IPs. Used for call setup, tear-down, and control messages between your SIP infrastructure and Vobiz.
**India**
| IP Address | Protocol | Port | Direction |
| --------------- | --------- | ---------------- | ------------------ |
| `13.203.7.132` | UDP / TCP | 5060, 5061 | Inbound + Outbound |
| `65.2.100.211` | UDP / TCP | 5060, 5061 | Inbound + Outbound |
| `13.126.98.234` | UDP / TCP | 5060, 5061 | Inbound + Outbound |
| `13.235.11.131` | UDP / TCP | 5060, 5061 | Inbound + Outbound |
| `13.233.44.61` | UDP / TCP | 5060, 5061 | Inbound + Outbound |
| `3.111.255.163` | UDP / TCP | 5060, 5061 | Inbound + Outbound |
| `3.111.128.110` | UDP / TCP | 5060, 5061 | Inbound + Outbound |
| `43.204.64.203` | UDP / TCP | 5060, 5061 | Inbound + Outbound |
| `15.207.232.91` | UDP / TCP | 5060, 5061, 5063 | Inbound + Outbound |
| `35.154.133.28` | UDP / TCP | 5060, 5061, 5063 | Inbound + Outbound |
**Firewall rule:** Allow TCP/UDP on ports `5060` and `5061` for all SIP signaling IPs in both directions.
## RTP Media
Allow UDP traffic from these IPs for the audio media stream. RTP carries the actual voice packets during a live call.
**India**
| IP Address | Protocol | Port Range | Direction |
| ------------------ | -------- | ---------- | ------------------ |
| `3.110.99.6` | UDP | 5000–65535 | Inbound + Outbound |
| `65.1.145.87` | UDP | 5000–65535 | Inbound + Outbound |
| `13.234.214.51` | UDP | 5000–65535 | Inbound + Outbound |
| `13.200.197.87` | UDP | 5000–65535 | Inbound + Outbound |
| `13.202.13.57` | UDP | 5000–65535 | Inbound + Outbound |
| `18.96.230.208/29` | UDP | 5000–65535 | Inbound + Outbound |
| `18.96.232.168/29` | UDP | 5000–65535 | Inbound + Outbound |
**Firewall rule:** Allow UDP port range `5000–65535` for all seven entries in both directions.
## Callbacks
Vobiz sends webhook callbacks from these IP addresses to your server. Allow inbound HTTPS traffic from these IPs so your application receives call status, hangup, and recording events.
**India**
| IP Address | Protocol | Port | Direction |
| --------------- | -------- | ----------------- | ---------------------- |
| `15.206.6.156` | HTTPS | 443 (80 for HTTP) | Inbound to your server |
| `35.154.59.246` | HTTPS | 443 (80 for HTTP) | Inbound to your server |
| `15.207.8.226` | HTTPS | 443 (80 for HTTP) | Inbound to your server |
**Firewall rule:** Allow inbound TCP port `443` (HTTPS) from all three IPs to your callback server. Port `80` only if you use plain HTTP callbacks.
## Protocol Whitelisting
In addition to IP addresses, ensure your firewall and ISP do not block the following protocols.
| Protocol | Port | Use |
| --------- | -------------- | --------------------------------- |
| **SIP** | 5060 / 5061 | Call signaling (setup & teardown) |
| **RTP** | 5000–65535 UDP | Voice media streaming |
| **HTTPS** | 443 TCP | Callback / webhook delivery |
| **WSS** | 443 TCP | WebSocket streaming (XML Stream) |
## All IPs at a Glance
```text SIP Signaling theme={null}
13.203.7.132
65.2.100.211
13.126.98.234
13.235.11.131
13.233.44.61
3.111.255.163
3.111.128.110
43.204.64.203
15.207.232.91
35.154.133.28
```
```text RTP Media theme={null}
3.110.99.6
65.1.145.87
13.234.214.51
13.200.197.87
13.202.13.57
18.96.230.208/29
18.96.232.168/29
```
```text Callbacks theme={null}
15.206.6.156
35.154.59.246
15.207.8.226
```