Voicemail Rewind/Fast Forward

[Noah Mehl]

We've had many requests by users who want to rewind and fast forward (via DTMF) while listening to voicemails.

As such, there is a Freeswitch api command: 

uuid_fileman

That allows for seek, pause, etc.  I've done some preliminary testing, and pause works great, and seek does not for MP3's.

A couple of things would need to happen:

1. Assign DTMF keys for rewind and fast forward (perhaps * and #?)
2. Update docs to reflect voicemail recording type required for fast forward and rewind
   1. Or, figure out what seek isn't working with MP3's

 

[Noah Mehl]

Apparently, this is a feature in Broadsoft, etc.

[esoare]

@Noah Mehl That sounds like a cool feature request. https://2600hz.atlassian.net/secure/BrowseProjects.jspa

Add that to JIRA if you don't mind. 

Perhaps others might chime in on those options. 

esoare

[Noah Mehl]

@esoare We have already submitted a PR for this: https://github.com/2600hz/kazoo/pull/5662

We're waiting on the TravisCI build (for over 24 hours?) and are unsure how to move forward else wise.

[Noah Mehl]

Hey everyone who is following this post.  We are mostly complete on our PR for this feature.  However, I think there is a bug in Freeswitch preventing this from working :(

From my testing, uuid_fileman seek doesn't work when a file is played back from http_cache.  I verified this by deploying Freeswitch 1.8 from the upstream Debian repo and trying the following extensions:

    <!-- uuid_fileman local test extension -->
    <extension name="uuid-fileman-test-local">
      <condition field="destination_number" expression="^uuid-fileman-local$">
        <action application="bind_digit_action" data="cc,4,api:uuid_fileman, ${uuid} seek:-16000" />
        <action application="bind_digit_action" data="cc,6,api:uuid_fileman, ${uuid} seek:+16000" />
        <action application="answer"/>
        <action application="sleep" data="1000"/>
        <action application="playback" data="/usr/share/freeswitch/sounds/music/custom/rick-rolled.mp3" />
      </condition>
    </extension>

    <!-- uuid_fileman http test extension -->
    <extension name="uuid-fileman-test-http">
      <condition field="destination_number" expression="^uuid-fileman-http$">
        <action application="bind_digit_action" data="cc,4,api:uuid_fileman, ${uuid} seek:-16000" />
        <action application="bind_digit_action" data="cc,6,api:uuid_fileman, ${uuid} seek:+16000" />
        <action application="answer"/>
        <action application="sleep" data="1000"/>
        <action application="playback" data="http_cache://http://localhost/rick-rolled.mp3" />
      </condition>
    </extension>

The first is playing back from the local filesystem and the actions work perfectly.  The second is playing back from an http location and the actions do not work.

@mc_ and @lazedo do we have any way to get this resolved?  We're happy to sponsor this, I'm just unsure on how to get it fixed, or if there's another way to get this done.

[Noah Mehl]

I've opened a bug in the Freeswitch Jira:

https://freeswitch.org/jira/browse/FS-11796

[Noah Mehl]

The freeswitch bug was fixed in master.  The kazoo PR was merged: https://github.com/2600hz/kazoo/pull/5662

@Karl Anderson can we please back port this to 4.3: https://github.com/2600hz/kazoo/pull/5845?

[mc_]

@Noah Mehl has the patch to FreeSWITCH been backported to the version installed alongside KAZOO 4.3? AFAIR the uuid_fileman stuff wasn't working prior to the fix in FS master, no?

[Noah Mehl]

@mc_ I'm not sure which version of Freeswitch is distributed with 4.3.  If it's 1.6.x the answer is no, because the FS hasn't back ported anything to 1.6.x in a LONG time.  If it's 1.8.x, then yes, master was merged into 1.8.x on 6/6/2019:

https://freeswitch.org/stash/projects/FS/repos/freeswitch/commits/f55c58fd8d9077172141a653c8794917e2e392b0#src/mod/applications/mod_http_cache/mod_http_cache.c

That being said, the commit with the fix can be cherry-picked into 1.6 cleanly:

https://freeswitch.org/stash/projects/FS/repos/freeswitch/commits/15c4647c8cf193f2188d1e3548a13a0ad720e710