Help Center
Frequently Asked Questions
Quick answers to the most common questions about iTelVoIP, the iTel Mobile Dialer, MoSIP Dialer, pricing, and support. Can't find what you need? Contact our support team.
Billing 7
We accept all major credit/debit cards (Visa, MasterCard, American Express), PayPal, and bank transfers for Enterprise customers. All transactions are secured with SSL encryption.
iTelVoIP offers four main plans: (1) Starter – Pay As You Go with no monthly fee. (2) Business – Monthly bundle with included international minutes, custom caller ID, and priority support. (3) Enterprise – Full-featured plan with SIP trunking, API access, and a dedicated account manager. (4) Custom Wholesale – For high-volume carriers and resellers. View all plans and pricing at itelvoip.com/packages.
Absolutely. You can change your plan at any time from your account dashboard. Upgrades take effect immediately; downgrades apply at the next billing cycle.
We offer a 7-day money-back guarantee on all monthly plans. If you are not satisfied, contact our support team within 7 days of purchase for a full refund. See our Refund Policy for full details.
Log in to your iTelVoIP customer portal and navigate to Billing → Add Credit. We accept Visa, Mastercard, American Express, PayPal, and cryptocurrency. Credit is added instantly upon payment confirmation. Minimum top-up is $5.00 on Pay As You Go plans.
Yes! We offer a 7-day money-back guarantee on all monthly VoIP plans. If you're not satisfied within the first 7 days of your subscription, contact us for a full refund. This does not apply to used calling credit or pay-per-minute top-ups. See our full Refund Policy at itelvoip.com/refund-policy.
On Pay As You Go plans, outbound calls stop when your balance reaches $0. You can top up anytime from your customer portal. Monthly plan subscribers continue to have access to their bundled minutes until the plan renews. You'll receive email alerts when your balance is low.
Downloads 2
To install the iTel Mobile Dialer APK: (1) Download the APK from itelvoip.com/downloads. (2) On your Android device, go to Settings → Security → Enable "Unknown Sources" (or "Install Unknown Apps"). (3) Open the downloaded APK file. (4) Tap Install. (5) Launch the iTel Mobile Dialer and enter your SIP credentials. Full installation guide available at itelvoip.com/guides.
Pre-configured configuration files for the iTel Mobile Dialer are available in our Download Center at itelvoip.com/downloads. Download the config file for your platform, import it into the dialer, and your SIP server settings will be auto-filled. You only need to enter your personal username and password.
General 10
VoIP (Voice over Internet Protocol) converts your voice into digital packets and transmits them over the internet instead of traditional phone lines. This allows for significantly cheaper calls — especially internationally — while maintaining crystal-clear audio quality.
No special hardware is required. Our iTel Dialer and MoSIP Dialer apps work on any smartphone (iOS or Android) or desktop computer. All you need is a stable internet connection.
After signing up and choosing a package that includes Custom Caller ID, you can set your outgoing number from your account dashboard. Our team verifies and activates your caller ID within 24 hours.
iTelVoIP supports calling to 200+ countries worldwide. We offer competitive per-minute rates for every destination. Check our Packages page for included minute bundles or use Pay As You Go for maximum flexibility.
Yes! We offer DID (Direct Inward Dialing) numbers and number porting services. Contact our support team to transfer your existing number to iTelVoIP.
iTelVoIP is an international VoIP (Voice over IP) service provider that lets you make crystal-clear calls to 200+ countries at up to 90% less than traditional carrier rates. We offer the iTel Mobile Dialer, MoSIP Dialer, custom caller ID, SIP trunking, and wholesale VoIP solutions.
VoIP (Voice over Internet Protocol) converts your voice into digital data packets and transmits them over the Internet instead of traditional phone lines. You need an Internet connection (Wi-Fi or mobile data), a VoIP app like the iTel Mobile Dialer, and an iTelVoIP SIP account. Calls are routed over our Tier-1 carrier network for the best quality.
iTelVoIP supports VoIP calls to 200+ countries worldwide, including the USA, UK, Canada, India, Pakistan, Bangladesh, Nigeria, UAE, Saudi Arabia, Australia, and all of Europe. Check our rate card for per-minute rates to each destination.
Registration is free. Our Starter plan has no monthly fee — you pay only per minute. Business and Enterprise plans have a monthly fee but include minute bundles, custom caller ID, and priority support. Start with the free Starter plan and upgrade as your calling needs grow.
The iTel Mobile Dialer is our user-friendly VoIP softphone for general users — easy setup, HD voice, and custom caller ID support. The MoSIP Dialer is our advanced SIP client for VoIP professionals, offering multi-account support (up to 10), full codec control (G.711/G.722/Opus/G.729/iLBC), BLF presence, TLS/SRTP encryption, and custom SIP headers. If you're a business or developer, MoSIP gives you full control. If you want simplicity, use iTel Mobile Dialer.
Products 12
The iTel Dialer is our proprietary VoIP softphone application available for Android and iOS. It connects directly to our SIP infrastructure for crystal-clear international calls at rock-bottom rates.
MoSIP is our advanced mobile SIP dialer designed for power users who need multi-account support, advanced codec options, and deeper SIP protocol control for professional use cases.
You can download the iTel Mobile Dialer from our Download Center at itelvoip.com/downloads. Android users can download the APK directly or install from the Google Play Store. iOS users can install from the Apple App Store. The app is free to download — you only pay for VoIP calls.
After downloading the iTel Mobile Dialer, go to Settings → Account. Enter your iTelVoIP username, password, and domain (sip.itelvoip.com). Set the port to 5060 for UDP or 5061 for TLS. Enable push notifications to receive incoming calls. Our full configuration guide is available at itelvoip.com/guides.
The SIP domain (also called operator code or server) for the iTel Mobile Dialer is sip.itelvoip.com. Your username and password are provided in your iTelVoIP customer portal under Account → SIP Credentials. The port is 5060 (UDP/TCP) or 5061 (TLS).
Yes, the iTel Mobile Dialer works on any Internet connection — Wi-Fi, 3G, 4G LTE, or 5G. For best call quality, use Wi-Fi or 4G/5G. For slower 3G connections, enable Low Bandwidth Mode in the dialer settings to reduce codec bitrate and maintain a stable call.
Yes, the iTel Mobile Dialer is fully supported on iOS 14.0 and later (iPhone 8 and newer). Download it from the Apple App Store. The iOS version supports all the same features as Android — HD voice, custom caller ID, push notifications, and background calling.
The latest version of the iTel Mobile Dialer is always available in our Download Center at itelvoip.com/downloads. We recommend always keeping the app updated to get the latest features, security patches, and call quality improvements. Enable auto-update in your App Store or Play Store to stay current.
In the MoSIP Dialer, go to Settings → Accounts → Add Account. Enter: Display Name (your name), Username (your iTelVoIP SIP username), Password, and Domain (sip.itelvoip.com). Enable Transport: TLS for encrypted calling, or UDP for standard. Set STUN server to stun.itelvoip.com. Save and the account will register within seconds.
Yes, the MoSIP Dialer supports up to 10 simultaneous SIP accounts. This is ideal for businesses, resellers, and VoIP professionals who need to manage calls across multiple SIP providers or accounts. Each account can have its own codec settings, caller ID, and transport configuration.
Custom Caller ID lets you display any verified phone number when making VoIP calls. To set it up: log in to your customer portal, go to Caller ID → Add Number, enter the number you want to display, complete phone or SMS verification, and the custom caller ID activates immediately. Available on Business and Enterprise plans.
You can only use a number that you legally own and have verified via a phone call or SMS. This prevents misuse and complies with telecommunications regulations worldwide. You cannot use random or spoofed numbers — only verified numbers associated with real phone services that you control.
Quality 4
We operate on Tier-1 carrier networks with multiple redundant routes ensuring 99.9% uptime and HD voice quality. Our intelligent call routing automatically selects the best route for every call.
Choppy or robotic audio is usually caused by insufficient bandwidth, high packet loss, or jitter. Try these fixes: (1) Switch to Wi-Fi if on mobile data. (2) Enable Low Bandwidth Mode and select G.711 codec. (3) Move closer to your router. (4) Disable VPN if you're using one — some VPNs introduce high latency. (5) Check our network status page. If the issue continues, contact support with your call log.
iTelVoIP supports the following voice codecs: Opus (HD, 6-510 kbps), G.722 (HD wideband), G.711 uLaw and aLaw (standard), G.729 (low bandwidth), and iLBC (available in MoSIP Dialer). We recommend Opus for best HD voice quality on fast connections, and G.711 uLaw for maximum compatibility.
iTelVoIP guarantees 99.9% platform uptime and uses Tier-1 carrier interconnects for the best possible call routing. However, call quality also depends on your local Internet connection speed and stability. For guaranteed HD quality, we recommend a connection with at least 1 Mbps upload/download speed and under 150ms latency per leg.
Security 3
All calls are encrypted using TLS (Transport Layer Security) for signaling and SRTP (Secure Real-time Transport Protocol) for media. Your conversations are private and protected.
Yes. iTelVoIP uses TLS (Transport Layer Security) for SIP signaling encryption and SRTP (Secure Real-time Transport Protocol) for voice media encryption. This means both your call setup and voice audio are encrypted end-to-end across our network. Enable TLS in your iTel Mobile Dialer or MoSIP Dialer settings for maximum security.
No. All VoIP calls on iTelVoIP are protected with SRTP media encryption, which prevents eavesdropping on the voice stream. SIP signaling is encrypted with TLS 1.3. As with any VoIP service, calls are decrypted at our servers before being routed to the PSTN for termination — we do not share call recordings with third parties.
Technical 1
Registration Failed usually means incorrect SIP credentials or a network issue. Check: (1) Username and password match your iTelVoIP portal exactly. (2) Domain is sip.itelvoip.com. (3) Port is 5060. (4) Your Internet connection is active. (5) Your network doesn't block UDP port 5060 — try switching to TCP or TLS. If the problem persists, contact our 24/7 support team.
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