Asterisk vs Kamailio

Struggling to choose between Asterisk and Kamailio? Both products offer unique advantages, making it a tough decision.

Asterisk is a Network & Admin solution with tags like voip, pbx, telephony.

It boasts features such as PBX functionality, VoIP, Interactive voice response, Voicemail, Conference calling, Call routing, Call queuing and pros including Open source and free, Highly customizable, Supports many protocols and codecs, Active development community, Integrates with many CRM and business software.

On the other hand, Kamailio is a Social & Communications product tagged with sip, voip, realtime-communications, call-routing, policy-enforcement, media-handling, accounting, authorization, presence, instant-messaging.

Its standout features include SIP proxy and registrar server, Presence and instant messaging, Load balancing and failover, NAT traversal, Media relaying, Accounting and billing, Flexible routing and policy enforcement, Modular architecture with extensive API, and it shines with pros like Open source and free, Highly scalable and performant, Rich feature set for VoIP, Active community support, Modular and customizable, Supports wide range of SIP devices and clients.

To help you make an informed decision, we've compiled a comprehensive comparison of these two products, delving into their features, pros, cons, pricing, and more. Get ready to explore the nuances that set them apart and determine which one is the perfect fit for your requirements.

Asterisk

Asterisk

Asterisk is an open source communications software that allows you to build telephony applications and services. It supports voice over IP, video conferencing, voicemail, auto attendant, interactive voice response, and more. It can be used to build PBX systems, call center solutions, and other communications platforms.

Categories:
voip pbx telephony

Asterisk Features

  1. PBX functionality
  2. VoIP
  3. Interactive voice response
  4. Voicemail
  5. Conference calling
  6. Call routing
  7. Call queuing

Pricing

  • Open Source

Pros

Open source and free

Highly customizable

Supports many protocols and codecs

Active development community

Integrates with many CRM and business software

Cons

Steep learning curve

Requires technical expertise to setup and manage

Limited official support

Fragmented documentation

Not as feature rich as proprietary PBX systems


Kamailio

Kamailio

Kamailio is an open source SIP server used for VoIP and real-time communications. It handles call routing, policy enforcement, media handling, accounting, and authorization with support for presence and instant messaging.

Categories:
sip voip realtime-communications call-routing policy-enforcement media-handling accounting authorization presence instant-messaging

Kamailio Features

  1. SIP proxy and registrar server
  2. Presence and instant messaging
  3. Load balancing and failover
  4. NAT traversal
  5. Media relaying
  6. Accounting and billing
  7. Flexible routing and policy enforcement
  8. Modular architecture with extensive API

Pricing

  • Open Source

Pros

Open source and free

Highly scalable and performant

Rich feature set for VoIP

Active community support

Modular and customizable

Supports wide range of SIP devices and clients

Cons

Steep learning curve

Requires expertise to setup and manage

Not as user friendly as commercial options

Limited official support and documentation