FreeSWITCH vs Kannel

FreeSWITCH

Description: FreeSWITCH is an open source telephony platform designed to facilitate the creation of voice and chat driven products scaling from a softphone to a PBX and even up to an enterprise-class softswitch. It can be used to power PBX solutions, voicemail services, conference calling, contact center solutions and more.

Type: software

Pricing: Open Source

Kannel

Description: Kannel is an open source WAP and SMS gateway that enables sending and receiving SMS messages to/from various devices and interfaces with various messaging protocols. It allows building SMS services and applications quickly and efficiently.

Type: software

Pricing: Open Source

FreeSWITCH Features

• Open source
• Supports multiple protocols like SIP, WebRTC, PSTN
• Scalable and modular architecture
• APIs for call control and management
• Audio codecs like G.711, G.722, G.729, Opus, Speex
• Video codecs like H.264, VP8
• Conference calling and bridging
• Call recording and monitoring
• IVR and text-to-speech capabilities
• Real-time call detail records

Kannel Features

• SMS gateway functionality
• Support for multiple protocols (SMPP, UCP/EMI, CIMD2, OIS, HTTP)
• Built-in SMSC (Short Message Service Center) functionality
• Support for long SMS messages
• Tools for parsing, validating, encoding SMS messages
• APIs for integrating with external apps and services
• Load balancing and redundancy capabilities
• Support for SMS over SS7 and SIGTRAN networks
• Tools for SMS routing, filtering, throttling
• Support for SMSC emulation and interconnecting
• Tools for monitoring, statistics, troubleshooting

FreeSWITCH

• Open Source

Kannel

• Open Source