--- title: Required Firewall Rules & IP Allowlist for Voiply Services description: Learn the required firewall ports and IP allowlist for Voiply, Acrobits, and CloudSoftphone to ensure reliable connectivity and seamless service. --- [Skip to content](https://kb.voiply.com/required-firewall-rules-ip-allowlist-for-voiply-services-0#main-content) English Show submenu for translations ![](https://kb.voiply.com/hs-fs/hubfs/image20191003143248_zbk0vb-1.png?width=100&height=75&name=image20191003143248_zbk0vb-1.png) Open main navigation Close main navigation - English Show submenu for translations - Contact us Contact us How can we help you? - There are no suggestions because the search field is empty. 1. [Voiply Knowlege Base](https://kb.voiply.com/) 2. [Getting Started](https://kb.voiply.com/getting-started) 3. [Network Setup](https://kb.voiply.com/getting-started#network-setup) # Required Firewall Rules & IP Allowlist for Voiply Services ## To ensure your Voiply service runs smoothly, certain firewall and network settings must be added to your router or network configuration. This will help prevent connectivity issues and guarantee optimal performance. #### Ports to Whitelist These ports are required for SIP calling, RTP audio streams, and secure web communication: - **SIP (Session Initiation Protocol):** - Ports: **5080–5082** - Protocols: **TCP and UDP** - **RTP (Real-time Transport Protocol):** - Ports: **20000–27999** - Protocol: **UDP** - **Web Access:** - Ports: **80 / 443** - Protocol: **TCP** --- #### IP Addresses to Allow (Voiply Services) Please allow inbound and outbound traffic to the following IP addresses: - 136.175.207.113 - 136.175.207.114 - 136.175.207.115 - 136.175.207.116 - 136.175.206.73 - 136.175.206.74 - 136.175.206.75 - 136.175.206.76 - 68.183.151.8 - 157.245.213.235 - 100.29.152.105 - 98.80.160.61 - 137.184.148.22 - 147.182.184.57 ### SIPIS IP List (Acrobits Groundwire, Softphone, SDK) The following IPs must be allowlisted for SIP Instance Server (SIPIS) communication: ### **IPv4:** 159.65.167.207 159.65.186.176 159.65.251.173 159.65.252.186 159.65.253.49 159.89.179.103 162.243.226.164 165.227.65.164 165.227.115.186 165.227.182.9 165.227.184.188 165.227.190.186 165.227.210.221 165.227.223.68 167.99.48.91 167.99.119.203 167.99.119.244 ### **IPv6:** 2604:a880:800:10::160:1 2604:a880:0:1010::d31:1001 2604:a880:800:a1::172e:b001 2604:a880:800:10::69d:5001 2604:a880:800:a1::1ad:1 2604:a880:800:10::7e:d001 2604:a880:800:10::790:4001 2604:a880:800:a1::1777:f001 2604:a880:800:10::292:1 2604:a880:800:10::5db:1 2604:a880:800:a1::176e:5001 2604:a880:800:a1::1777:e001 2604:a880:800:a1::176e:3001 2604:a880:800:a1::172b:7001 2604:a880:800:a1::174f:e001 2604:a880:800:10::62b:1001 2604:a880:800:10::72d:b001 **Additional Requirements:** - SIPIS IPs must communicate with the SIP registrar (PBX) server over SIP ports (typically **5060** or **5061 TLS**). - User devices must connect to SIPIS IPs on the following ports: - 443/TCP - 4998/UDP - 4998/TCP - 24998/TCP - Devices must also connect to `reg.acrobits.cz` – **165.227.103.7 (IPv4)** and **2604:a880:800:a1::12f9:c001 (IPv6)** – on port **443**. **Note:** You can always check the up-to-date list of Acrobits Push (SIPIS) servers by resolving the DNS name: `all.sipis.acrobits.cz` --- #### Implementation Notes - Double-check that all ports, hostnames, and IP addresses are correctly added to your whitelist. - Ensure no existing firewall rules conflict with these settings, as this could cause service interruptions. - Apply the changes and **reboot your router or network equipment** if necessary. --- By following these steps, you can ensure uninterrupted connectivity and the best possible performance from your Voiply services. - [Getting Started](https://kb.voiply.com/getting-started#main-content) - [Account Setup & Verification](https://kb.voiply.com/getting-started#account-setup-verification) - [Billing Basics](https://kb.voiply.com/getting-started#billing-basics) - [Calling and Service Limitations](https://kb.voiply.com/getting-started#calling-and-service-limitations) - [Features & Enhancements](https://kb.voiply.com/getting-started#features-enhancements) - [Network Setup](https://kb.voiply.com/getting-started#network-setup) - [Using the Voiply Mobile App](https://kb.voiply.com/getting-started#using-the-voiply-mobile-app) - [Porting Your Number](https://kb.voiply.com/porting-your-number) - [Home Phone Service](https://kb.voiply.com/home-phone-service#main-content) - [Cancellation and Returns](https://kb.voiply.com/home-phone-service#cancellation-and-returns) - [Troubleshooting](https://kb.voiply.com/home-phone-service#troubleshooting) - [Billing and Payments](https://kb.voiply.com/home-phone-service#billing-and-payments) - [Account Management](https://kb.voiply.com/home-phone-service#account-management) - [Getting Started](https://kb.voiply.com/home-phone-service#getting-started) - [Kids Phone Service](https://kb.voiply.com/kids-phone-service) - [Business Phone Service](https://kb.voiply.com/business-phone-service#main-content) - [Starter Plan](https://kb.voiply.com/business-phone-service#starter-plan) - [The Essentials](https://kb.voiply.com/business-phone-service#the-essentials) - [Premier Plan](https://kb.voiply.com/business-phone-service#premier-plan) - [Number Parking](https://kb.voiply.com/number-parking) - [Internet Service](https://kb.voiply.com/internet-service) - [Online Fax Service](https://kb.voiply.com/online-fax-service) - [Premium Add-ons](https://kb.voiply.com/premium-add-ons) - [AI Receptionist](https://kb.voiply.com/ai-receptionist) - [AI Assistant](https://kb.voiply.com/ai-assistant) [![Chill listening crop-3](https://kb.voiply.com/hs-fs/hubfs/logo_1-removebg-preview.png?width=60&height=24&name=logo_1-removebg-preview.png "Chill listening crop-3")](http://www.voiply.com) 301 Grant St #270, Pittsburgh, PA 15219 [mailto:support@voiply.com](mailto:support@voiply.com) Copyright © 2025, Voiply, LLC