Compare ASTPP vs. Kamailio in 2026

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Description

Introducing a cutting-edge TelePhony Platform tailored for individual enterprises, wholesale distributors, and residential VoIP service providers! This open-source option allows anyone to kickstart their telephony venture without any initial investment through ASTPP. As a highly effective VoIP Billing Software, ASTPP aims to enhance user experience by offering a well-rounded telephony solution. Having evolved from a basic billing platform to “A Smart TelePhony Platform,” the latest iteration of ASTPP includes sophisticated functional modules designed to consolidate multiple services necessary for operating a VoIP business. It seamlessly incorporates hosted IP PBX systems, Class 4/5 Softswitch capabilities, and an all-encompassing invoicing and billing framework powered by Smart Technology. Users can efficiently manage origination and termination rates separately, unlocking revenue potential through both least cost routing and cost-based routing strategies. This advancement not only simplifies operations but also maximizes profitability in the competitive VoIP market.

Description

Kamailio® is an open-source SIP server, which evolved from the earlier OpenSER and SER, and is distributed under GPLv2+, capable of managing thousands of call setups each second. This robust platform can be utilized for constructing extensive systems for VoIP, real-time communication, presence, WebRTC, instant messaging, and various other applications. Additionally, Kamailio is well-suited for scaling SIP-to-PSTN gateways, PBX systems, or media servers such as Asterisk™, FreeSWITCH™, or SEMS with ease. Its extensive feature set includes support for asynchronous TCP, UDP, and SCTP, secure communication through TLS for voice, video, and text, as well as WebSocket compatibility for WebRTC. The server supports both IPv4 and IPv6, offers simple instant messaging and presence capabilities with an integrated XCAP server and MSRP relay, and enables asynchronous operations. Furthermore, it includes IMS extensions for VoLTE, ENUM functionality, DID and least cost routing, load balancing, and routing failover. Kamailio also provides comprehensive accounting, authentication, and authorization features, while supporting a variety of backend systems, including MySQL, Postgres, Oracle, Radius, LDAP, Redis, Cassandra, MongoDB, and Memcached. All these capabilities make Kamailio a versatile choice for modern communication infrastructures.