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What is Kamailio?

Kamailio® is a powerful open-source SIP server that emerged from the earlier versions of OpenSER and SER, and is released under GPLv2+, designed to efficiently handle thousands of call setups per second. This versatile platform is ideal for building large-scale VoIP systems, facilitating real-time communication, managing presence, supporting WebRTC, enabling instant messaging, and accommodating numerous other applications. Moreover, Kamailio excels in scaling SIP-to-PSTN gateways, PBX systems, and media servers, such as Asterisk™, FreeSWITCH™, or SEMS, with remarkable ease. Its rich feature set encompasses support for asynchronous protocols like TCP, UDP, and SCTP, ensuring secure communication through TLS for voice, video, and text, in addition to compatibility with WebSockets for WebRTC. The server also fully supports both IPv4 and IPv6, offers straightforward instant messaging and presence functionalities via an integrated XCAP server and MSRP relay, and facilitates asynchronous operations effortlessly. Additionally, it includes IMS extensions for VoLTE, ENUM capabilities, along with features for DID and least cost routing, load balancing, and routing failover to enhance reliability. Kamailio's comprehensive suite of accounting, authentication, and authorization features ensures robust security, while it seamlessly integrates with a variety of backend systems such as MySQL, Postgres, Oracle, Radius, LDAP, Redis, Cassandra, MongoDB, and Memcached. With all these advanced capabilities, Kamailio stands out as a highly adaptable solution for contemporary communication infrastructures, making it a preferred choice among developers and organizations alike.

What is CallFlow?

CallFlow provides an all-inclusive toll-free number service along with call forwarding options specifically designed for businesses that value each incoming call. Featuring sophisticated routing technology, it skillfully manages calls across various campaigns and clients, all while allowing real-time tracking of call activity. The billing process is simplified with a per-second charging system and an integrated wallet feature, promoting clarity and convenience. Essential features include Interactive Voice Response (IVR), spam defense, effortless live call transfers, efficient campaign oversight, and access for a multitude of users. With CallFlow, you can eliminate telecom challenges and experience a smooth calling process that genuinely meets your needs. Plus, the service is continuously updated to adapt to the evolving demands of modern businesses.

Media

Media

Integrations Supported

360 Monitoring
Apache Cassandra
Asterisk
Fonimo
FreeSWITCH
LDAP
MongoDB
MySQL
Oracle Cloud Infrastructure
PostgreSQL
Radius
Redis
memcached

Integrations Supported

360 Monitoring
Apache Cassandra
Asterisk
Fonimo
FreeSWITCH
LDAP
MongoDB
MySQL
Oracle Cloud Infrastructure
PostgreSQL
Radius
Redis
memcached

API Availability

Has API

API Availability

Has API

Pricing Information

Pricing not provided.
Free Trial Offered?
Free Version

Pricing Information

$20/month
Free Trial Offered?
Free Version

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

Kamailio

Date Founded

2001

Company Location

United States

Company Website

www.kamailio.org/w/

Company Facts

Organization Name

ALERTSIO LLC

Date Founded

2007

Company Location

United States

Company Website

callflow.solutions

Categories and Features

PBX

Telephony

Auto-Dialer
Call Center Management
Call Monitoring
Contact Management
IVR / Voice Recognition
Inbound Reporting
Outbound Reporting
Predictive Dialer
Telemarketing Management
VoIP
Voice & Data Integration

Categories and Features

Telephony

Auto-Dialer
Call Center Management
Call Monitoring
Contact Management
IVR / Voice Recognition
Inbound Reporting
Outbound Reporting
Predictive Dialer
Telemarketing Management
VoIP
Voice & Data Integration

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