How to Unblock VoIP Calling Anywhere Securely | Symlex VPN

Are you looking to contact clients and friends worldwide cheaply, but VoIP services aren’t accessible in your country? Then, you’ll need to download a VPN app for VoIP.

VoIP means voice-over-internet protocol. A trustworthy VoIP VPN allows you to communicate with loved ones across long distances through audio and video chat. You don’t have to worry about hackers and ISPs spying on you.

A VPN helps protect your online privacy by encrypting your data and sending it through a remote server. You can hide your IP address on websites you visit, so you don’t have to worry about being tracked when visiting a restricted country. 

This means you can keep using apps like Skype and Viber and messaging services like Messenger, Whatsapp, and Signal, even when blocked.

Not every VPN is secure or fast enough to bypass VoIP restrictions, especially free ones. Consequently, you must carefully choose a good paid VPN like Symlex VPN for your VoIP calling needs. Let’s dig deeper into the topic and continue reading.

Why is VoIP Restricted In Several Countries?

Several countries with state-owned telecoms, such as the United Arab Emirates and Saudi Arabia, restrict VoIP to prevent people from making free online calls. 

Due to this, WhatsApp, Skype, Discord, and Facebook Messenger were restricted from accessing. However, a popular WhatsApp communication app is partially blocked in Saudi Arabia. You can text but cannot use voice and video calling features.

You can easily bypass these restrictions and enjoy VoIP calling using a VoIP VPN while traveling. For example, Symlex VPN can unblock all major social media platform and secures your online activities using military-grade solid encryption.

Rest assured, your online identity will be safe from the government, hackers, and ISPs. It’s also beneficial to use a VPN for VoIP calling; let’s discuss those.

How ISPs Block VoIP Calling?

ISP or your Internet Service Provider blocks VoIP calling in three main ways: by blocking UDP/TCP ports, Symmetric UDP NAT, Deep Packet Inspection, and by stopping SIP.

Blocking UDP/TCP Ports

VoIP calling service uses the 5060 port on UDP and TCP protocol to transfer voice and video data packets and operates the 5061 protocol with TLS (Transfer Layer Security) for security. ISPs can easily block these ports to revoke access to VoIP applications.

Symmetric UDP NAT

Some ISPs use symmetric NAT traversal, which can cause issues with VoIP traffic. This method can be more difficult to bypass, but a VPN (Virtual Private Network) can help. A VPN connection disguises your data traffic by changing IP addresses, making it appear like a regular connection. So, your ISP cannot detect whether you’re using one.

Deep Packet Inspection (DPI)

ISPs may use Deep Packet Inspection (DPI) to block VoIP traffic. DPI is a technique used to inspect and analyze the contents of network traffic in real-time. ISPs employ DPI to identify VoIP traffic and then block it dynamically. 

DPI can identify VoIP traffic by looking for specific patterns in the traffic, such as the use of specific ports or protocols. Once identified, the ISP can block the traffic by dropping the packets or slowing the connection. See this video to learn more about DPI from – Mahindra Comviva.

Blocking Session Initiation Protocol (SIP)

SIP is a protocol for initiating, maintaining, and terminating real-time sessions involving video, voice, messaging, and other communications applications and services between two or more endpoints on IP networks. Some ISPs may block the SIP signaling port, preventing VoIP calls from being established.

Why Should You Use a VPN for VOIP?

A VPN can unblock VoIP calling and improve calling performance to a great extent. Let’s discuss the advantages of using a VPN for VoIP calling.

✅ Reduce Your Spendings: Skype, Viber, and Google Hangouts offer comparatively low international calling rates when calling mobiles or landlines. Choose the VPN server closest to your VoIP call receiver for the lowest price. Utilizing VoIP through a VPN tunnel instead of your local telecom provider can save you money.

✅ Increased Security & Privacy: Using a VPN for VOIP can prevent your ISP and the government from tracking your metadata and calls, giving you more privacy and freedom to use VOIP services. For instance, Symlex VPN encrypts your entire internet connection using 256-bit AES encryption. Thus, it prevents packet interception and bandwidth throttling.

✅ Better call quality: VOIP is sensitive to network performance, and using a VPN can help improve call quality by reducing latency and packet loss. VPNs can also help to prevent calls from being blocked or dropped due to network congestion. This provides a more reliable and secure VoIP calling experience.

Which VPN Is the Best for VoIP?

Some of the best VPNs for unblocking VoIP include Symlex VPN, CyberGhost, ExpressVPN, VyprVPN, NordVPN, and IPVanish.

Symlex VPN

Customers may use the Symlex free VPN proxy service, which supports VPN protocols (SSH, TCP, UDP, Wireguard, VOIP, TLS, DNS, HTTP, HTTPS, Open connect, Openvpn, and Anyconnect). Symlex VPN is a global VPN service provider in the United States, South America, Europe, Asia, and the United Kingdom.

It has industry-leading features like AES-256 bit encryption, no-log policy, DNS leak protection, active kill switch, and split tunneling. The best part about Symlex VPN is you can enjoy all these features at an affordable price.

CyberGhost

With over 7100 servers in over 95 locations, CyberGhost is a reliable VPN service. You may use CyberGhost to get around any local VOIP service prohibitions, among many other features and applications.

The military-grade AES 256-bit encryption ensures that your voice conversations are always secure. They also have a strict no-logs policy to preserve their users’ privacy. The automatic kill switch feature is useful when your VPN connection is lost.

ExpressVPN

Because of its extensive experience in the market, ExpressVPN has many servers throughout the globe. To be precise, 160 locations across 94 nations. With Express VPN, all VoIP apps can be unblocked no matter where you are.

It operates on almost all operating systems, including Windows, iOS, Android, Linux, and Mac. Your Internet connection may be safeguarded down to the router—one of the best VPN applications for limitless VOIP services throughout the globe.

VyprVPN

With a 12-month subscription costing just $5 per month at 50% off, VyprVPN is one of the most affordable VPN services. They are one of the fastest VPN networks, with over 2 million customers. Approximately 300,000 IP addresses are available on 70+ servers. 

The company also provides a generous 30-day money-back guarantee. VyprDNS also offers DNS protection over your current DNS provider to take security to new heights.

NordVPN

You may encrypt up to 6 devices simultaneously with NordVPN, regardless of their operating system. 5800 NordVPN servers in 60 countries will provide the best possible connection anywhere on the earth.

For about $12.99 per month, you may unlock or secure any VOIP application anywhere. The servers are quick and will not slow down your internet connection. NordVPN is one of the best ways to protect yourself online or unblock any blocked services by browsing from a server in another country.

IPVanish

IPVanish can provide you with an excellent VPN option for unlocking VOIP apps. With 2000+ anonymous servers, IPVanish provides over 40000+ IP addresses, 2200 servers, and 75+ VPN locations with unlimited bandwidth and no logs. It also supports major VPN protocols like IKEv2, OpenVPN, and L2TP/IP.

FAQs

Does VPN help VoIP?

VoIP VPNs offer several benefits, including improved security, bypassing restrictions, better call quality, and increased privacy. Ensure the VPN has stable and secure connections, obfuscated servers, and multiple encryption protocols.

What are the three disadvantages of VoIP?

The main three disadvantages of VoIP calls are the need for a stable internet connection, susceptibility to cyber attacks, and continuous power supply. It also sometimes causes network latency and jitter and doesn’t support emergency calling.

Are VoIP calls secure?

Yes, VoIP services are generally more secure than your landlines. The calls are transferred through a secure tunnel so no third party can spy or intercept them. VOIP calls can, however, be impacted by a vulnerable central infrastructure.

Final Words

VoIP services are becoming more popular as international calling plans get more expensive. People can use Skype, WhatsApp, and other VoIP services to call their friends and family for free anywhere. 

Unfortunately, most countries have banned or restricted VoIP services, so companies that charge too much for roaming and international calls are worried about how much money they’re losing. The best way to avoid this is to use a VPN service provider with global VPN servers and strong encryption. This makes it easy to bypass VoIP geo-restriction and ISP speed throttling.