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dfks usageThe module enables the handling of the "as-feature-event" event package (as defined by Broadsoft's Device Feature Key Synchronization protocol) by the presence module. This can be used to synchronize the status of features such as Do Not Disturb and different forwarding types between a SIP phone and a SIP server.
The module supports synchronization for the following features: Do Not Disturb, Call Forwarding Always, Call Forwarding Busy and Call Forwarding No Answer. Feature status can be changed either from the SIP phone or the OpenSIPS Server( by running an MI command).
When handling a SUBSCRIBE message without a body, the module will run a script route for each feature, that will be used to retrieve the current status of that feature. Conversely, a SUBSCRIBE with a body will trigger a script route where the updated status of a specific feature is available. This route might also be run if the feature update was triggered from OpenSIPS via MI.
Note that the module does not automatically cache or persist any feature information as this is left for the script writer to implement in the routes triggered by the module.
The name of the script route to be run in order to retrieve the status of a feature.
Default value is “dfks_get”.
Triggers the sending of NOTIFY messages containing a feature status update to all watchers.
Note: calling this MI function also triggers the set_route run. One can determine if the route is triggered by an MI function by checking the existence of the $dfks(param) variable.
Name: dfks_set_feature
Parameters:
presentity: the URI of the user whose feature status should be updated
feature: The name of the feature to update. Takes one of the following values:
DoNotDisturb
CallForwardingAlways
CallForwardingBusy
CallForwardingNoAnswer
status: the new status of the feature: 0 - disabled, 1 - enabled
route_param: optional string parameter passed to the $dfks(param) variable in set_route.
values: an array of extra values that can be updated for a feature. The format of an array element is: field/value. Supported fields are:
forwardTo - for all forwarding types
ringCount - for CallForwardingNoAnswer
MI FIFO Command Format:
opensips-cli -x mi dfks_set_feature sip:alice@10.0.0.11 CallForwardingNoAnswer 1 1 \ ringCount/4 forwardTo/sip:bob@10.0.0.11
This pseudo-variable can be used in the routes triggered by the module to handle the feature information through the following subnames:
assigned - inform the SIP phone that a feature is unassigned by setting this to 0 (the NOTIFY response will contain no XML data for the corresponding feature) By default, features are assigned.
notify - suppress the sending of the NOTIFY message by setting this to 0. By default, the NOTIFY is sent.
presentity - read-only, returns the current presentity URI.
feature - read-only, returns the current feature name. Possible values are:
DoNotDisturb
CallForwardingAlways
CallForwardingBusy
CallForwardingNoAnswer
status - read or write the feature status. A value of 1 means enabled and 0 disabled.
param - returns the parameter passed by the mi_dfks_set_feature MI function. This field will be NULL if the parameter was not specified, or if the set_route is not triggered by an MI command, but by SIP signalling.
value/field - read or write extra feature values. field can be one of:
forwardTo - for all forwarding types
ringCount - for CallForwardingNoAnswer
Example 1.3. dfks usage
...
route[dfks_set] {
# CallForwardingAlways is not allowed
if ($dfks(feature) == "CallForwardingAlways")
$dfks(status) = 0;
xlog("New status: $dfks(status) for feature '$dfks(feature)' of user '$dfks(presentity)'\n");
}
route[dfks_get] {
if ($dfks(feature) == "CallForwardingNoAnswer") {
$dfks(status) = 1;
$dfks(value/forwardTo) = "sip:bob@10.0.0.11";
$dfks(value/ringCount) = "3";
} else if ($dfks(feature) == "CallForwardingAlways")
$dfks(assigned) = 0;
} else {
...
}
}
...
Table 2.1. Top contributors by DevScore(1), authored commits(2) and lines added/removed(3)
| Name | DevScore | Commits | Lines ++ | Lines -- | |
|---|---|---|---|---|---|
| 1. | Vlad Patrascu (@rvlad-patrascu) | 23 | 7 | 1641 | 92 |
| 2. | Maksym Sobolyev (@sobomax) | 7 | 5 | 15 | 20 |
| 3. | Bogdan-Andrei Iancu (@bogdan-iancu) | 6 | 4 | 31 | 26 |
| 4. | Liviu Chircu (@liviuchircu) | 4 | 2 | 2 | 2 |
| 5. | Razvan Crainea (@razvancrainea) | 3 | 1 | 67 | 21 |
(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. | Bogdan-Andrei Iancu (@bogdan-iancu) | Dec 2020 - Jan 2024 |
| 2. | Maksym Sobolyev (@sobomax) | Jan 2021 - Feb 2023 |
| 3. | Liviu Chircu (@liviuchircu) | Nov 2020 - Jan 2021 |
| 4. | Vlad Patrascu (@rvlad-patrascu) | Dec 2019 - Sep 2020 |
| 5. | Razvan Crainea (@razvancrainea) | Feb 2020 - Feb 2020 |
(1) including any documentation-related commits, excluding merge commits
Last edited by: Bogdan-Andrei Iancu (@bogdan-iancu), Vlad Patrascu (@rvlad-patrascu), Razvan Crainea (@razvancrainea).
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