Table of Contents
List of Tables
List of Examples
The "freeswitch" module is a C driver for the FreeSWITCH Event Socket Layer interface. It can interact with one or more FreeSWITCH servers either by issuing commands to them, or by receiving events from them.
This driver can be seen as a centralized FreeSWITCH ESL connection manager. OpenSIPS modules may use its API in order to easily establish, reference and reuse ESL connections.
A FreeSWITCH ESL URL is of the form: fs://[username]:password@host[:port]. The default ESL port is 8021.
The following libraries or applications must be installed before running OpenSIPS with this module loaded:
None
The expected interval between FreeSWITCH HEARTBEAT event arrivals.
Default value is “1” (second).
Example 1.1. Setting the event_heartbeat_interval parameter
...
modparam("freeswitch", "event_heartbeat_interval", 20)
...
The maximally allowed duration for the establishment of an ESL connection.
Default value is “5000” (milliseconds).
Example 1.2. Setting the esl_connect_timeout parameter
...
modparam("freeswitch", "esl_connect_timeout", 3000)
...
The maximally allowed duration for the execution of an ESL command. This interval does not include the connect duration.
Default value is “5000” (milliseconds).
Example 1.3. Setting the esl_cmd_timeout parameter
...
modparam("freeswitch", "esl_cmd_timeout", 3000)
...
The sleep interval used when polling for an ESL command response. Since the value of this parameter imposes a minimal duration for any ESL command, you should run OpenSIPS in debug mode in order to first determine an expected response time for an arbitrary ESL command, then tune this parameter accordingly.
Default value is “1000” (microseconds).
Example 1.4. Setting the esl_cmd_polling_itv parameter
...
modparam("freeswitch", "esl_cmd_polling_itv", 3000)
...
Table 2.1. Top contributors by DevScore(1), authored commits(2) and lines added/removed(3)
| Name | DevScore | Commits | Lines ++ | Lines -- | |
|---|---|---|---|---|---|
| 1. | Liviu Chircu (@liviuchircu) | 105 | 46 | 4070 | 1475 |
| 2. | Razvan Crainea (@razvancrainea) | 9 | 7 | 25 | 13 |
| 3. | Bogdan-Andrei Iancu (@bogdan-iancu) | 4 | 2 | 4 | 3 |
| 4. | rance | 3 | 2 | 3 | 0 |
| 5. | Vlad Patrascu (@rvlad-patrascu) | 2 | 1 | 1 | 0 |
(1) DevScore = author_commits + author_lines_added / (project_lines_added / project_commits) + author_lines_deleted / (project_lines_deleted / project_commits)
(2) including any documentation-related commits, excluding merge commits. Regarding imported patches/code, we do our best to count the work on behalf of the proper owner, as per the "fix_authors" and "mod_renames" arrays in opensips/doc/build-contrib.sh. If you identify any patches/commits which do not get properly attributed to you, please submit a pull request which extends "fix_authors" and/or "mod_renames".
(3) ignoring whitespace edits, renamed files and auto-generated files
Table 2.2. Most recently active contributors(1) to this module
| Name | Commit Activity | |
|---|---|---|
| 1. | rance | Oct 2020 - Mar 2021 |
| 2. | Liviu Chircu (@liviuchircu) | Jan 2017 - Mar 2021 |
| 3. | Razvan Crainea (@razvancrainea) | Feb 2017 - Sep 2019 |
| 4. | Bogdan-Andrei Iancu (@bogdan-iancu) | Jan 2018 - Jun 2018 |
| 5. | Vlad Patrascu (@rvlad-patrascu) | May 2017 - May 2017 |
(1) including any documentation-related commits, excluding merge commits
Last edited by: Bogdan-Andrei Iancu (@bogdan-iancu), Liviu Chircu (@liviuchircu).
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