Bandwidth Alternatives

Brings voice and messaging to your web and mobile applications.

Open Source

Plivo simplifies your customer engagement.

VoIPstudio is an award-winning VoIP system that offers businesses of all sizes a scalable communication solution. It’s inexpensive, easy-to-use, offers a full suite of PBX features, and is fully integrated for CRM.

Try for free paid Free Trial $4.99 / Monthly (User)

Nexmo is a simple two way SMS API with global reach and wholesale rates

Reach 7 billion phones in seconds via SMS, Chat & Voice. Try it for free and improve your communication.

Sinch is a powerful voice and messaging SDK that lets you bring your apps to life with VoIP and...

Telnyx is a cloud-based platform that offers access to carrier grade voice services over the internet.

Podium helps your business get more customer reviews, manage customer feedback, customer interaction, and online review management from one software.

Open Source

VoIP.ms is a VoIP origination and termination tool.

Network Lights is a Windows program, which blinks keyboard LEDs (Light Emitting Diode) indicating outgoing and incoming network packets on network interface.

Fully compliant, enterprise-ready voice and SMS on demand. Build local presence on a global scale with elastic SIP trunks and phone numbers. Try for free.

Monitor network bandwidth (C#.NET 2k/XP+). Desktop and Systray graph.

A2P messaging platform for enterprises, resellers & mobile operators with global network coverage.

trafficWatcher is a small tool to monitor your network activity.