Reference Manual

About This Guide

This guide is work in progress. The guide was originally conceived as the reference manual for SER 2.0 and it is currently being transformed into the reference manual for the SIP Router.

SIP Express Router is a free, extensible, powerful, heavy-duty SIP server. SER gets typically deployed at large-scale and complex SIP server setups where other solutions fail. The server features efficient, elegant, and small core, powerful and flexible configuration language capable of doing things to SIP messages beyond imagination. Vast collection of extension modules provides additional features that can be loaded only when needed, helping to maintain the server neat, clean, and sane. SER's elegant design together with an efficient, extensible, and easy to integrate data model make it an ideal sofware for large or complicated SIP setups on most platforms.

This reference manual attempts to describe all subsystems, parts, extension modules, functions, parameters, and features of SER and its configuration language. It is terse but the reference manual attempts to be complete. For a shorter and easier to read introduction to SER 2.0 read the Administrator's Guide.

Table of Contents

  1. Destination Blacklists
  2. Configuration File
    1. Lexical Scope
    2. Global Configuration
    3. Routing Sections
  3. Data Model
    1. General Concepts
    2. Users
    3. Virtual Domains
    4. URIs
    5. Attributes
    6. Accounting
  4. Database Abstraction Layer
  5. DNS Subsystem
  6. IPv6 Support
  7. Shared Libraries
  8. Logging Subsystem
  9. Multicast Support
  10. Memory Management
  11. Management Interface
  12. Modules
    1. loading_modules
    2. Module Parameters
  13. NAT Traversal
  14. The Select Framework
    1. Overview of Operation
    2. Select Identifiers
    3. Nested Selects
    4. Selects in Expressions
    5. Selects in Parameters
    6. System Selects
    7. Selects in Modules
  15. Transactions, Dialogs, Sessions
  16. STUN Support
  17. Transport Protocols
    1. TCP/IP
    2. TLS/SSL
    3. SCTP
  18. SIP Transaction Timers
    1. fr_timer
    2. fr_inv_timer
    3. wt_timer
    4. retr_timer1
    5. retr_timer2
    6. delete_timer