[Freeswitch-users] mod_esf with polycom

Thu Jan 28 08:30:00 MSK 2016

Perhaps you are being led astray by the term “multicast group” in the usage prototype. That is simply the multicast address, such as 239.1.1.1 

FIXED!

IGMP = Internet Group Management Protocol which is where that came from.

I have used mod_esf to send multicast streams to devices manufactured by one of my clients and it worked swimmingly with only the multicast address and port being the fields that mattered. Thanks to a change by anthm you can even add it to the conference bridge if you want both regular SIP calls and pages to be combined into one group announcement.

With a phone there’s no telling what else they might require to light it up for a multicast announcement. Somebody was just asking a very similar question here last week for a different phone. If the phone requires some control signal or command to open up the speaker for a multicast announcement to follow, then I don’t think FS does that right now. It might be worth scouring Polycom documentation to see if they reveal any secrets.

* * *

I really wish the order of the arguments were

Address, port, TTL, [other stuff]

So that “other stuff” could’ve been made optional. I have never gotten a clear definition of what that Linksys control port does, but my research revealed that it was likely carried over from an Asterisk compatibility feature.

---

Bote

FreeSWITCH Docs Janitor

 <http://freeswitch.org/confluence> http://freeswitch.org/confluence

From: freeswitch-users-bounces at lists.freeswitch.org [mailto:freeswitch-users-bounces at lists.freeswitch.org] On Behalf Of Peter Hartmann
Sent: Wednesday, 27 January, 2016 22:27
To: FreeSWITCH Users Help
Subject: Re: [Freeswitch-users] mod_esf with polycom

Thanks Brian.  Yes, I've tried it.  It looks promising though, since I can see some of  the default polycom settings defined in variables.  Nothing about group is mentioned...so maybe it's going to the default group?  I have a feeling I'll be doing a packet capture on a group-25 (emergency) broadcast to see what it does.  

Peter Hartmann
Hartmann Computer Consulting
http://blog.hartmanncomputer.com
(212)203-8870 <tel:%28212%29203-8870> 

If I can't explain it to you in plain language, that means I don't understand it.

On Wed, Jan 27, 2016 at 10:03 PM, Brian West <brian at freeswitch.org> wrote:

I'll review the source in the morning and verify if it's documented correctly.

On Wednesday, January 27, 2016, Brian West <brian at freeswitch.org> wrote:

Have you tried it?  It should just work if I recall correctly.

On Wednesday, January 27, 2016, Peter Hartmann <peter at hartmanncomputer.com> wrote:

Hey, how do you use mod_esf with Polycom?  The source suggests that
it's supported, but the arguments in the documentation seem specific
to Linksys.  From using the feature directly from a handset, I imagine
we have to pass multicast-address, multicast-port and group-number.
I've tried every combination and permutation with no luck.

The reason I'm doing this is because if the emergency group number is
used, the announcements will be at full volume regardless of the
hands-free volume setting.

And also I'm looking to do this in FS because I'm bridging in another
PA system also.

Thanks,

Peter Hartmann
Hartmann Computer Consulting
http://blog.hartmanncomputer.com
(212)203-8870 <tel:%28212%29203-8870> 

If I can't explain it to you in plain language, that means I don't
understand it.

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Got Bugs? Report them here <https://freeswitch.org/jira> ! | Reddit: /r/freeswitch <https://www.reddit.com/r/freeswitch> 

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iNUM:+883 5100 1420 9001 | ISN:410*543 | Skype:briankwest

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