Leveraging the FreePBX Dynamic Routes Module for External SQL Database Call Routing
by Provider Adminlast verified 2026-08-13
Overview
Learn how to use the FreePBX Dynamic Routes module to execute live SQL queries against external databases during call processing. This guide covers architecture, ODBC driver setup, SQL query design, and mapping database return values to custom PBX destinations. Implementing dynamic database lookups enables real-time decisions such as VIP routing, account status checks, and language preference matching.
Key takeaways
- Understand the architecture of the Dynamic Routes module and how it hooks into Asterisk dialplan execution.
- Configure unixODBC and FreePBX to establish secure, low-latency connections to external MySQL/MariaDB databases.
- Design parameterized SQL queries using Asterisk channel variables like ${CALLERID(num)}.
- Map database return values directly to FreePBX destinations such as Queues, IVRs, and Extensions.
- Implement robust error handling and failover paths to prevent call drops during database outages.
Prerequisites
- FreePBX system running version 15 or higher with administrative access.
- Dynamic Routes (dynroute) module installed via FreePBX Module Admin.
- External MySQL/MariaDB database accessible over the network from the FreePBX server.
- Basic knowledge of SQL queries and Linux terminal administration.
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