[Freeswitch-users] Push to talk

Larry Morley lmorley at neny.cslimits.net
Mon Dec 14 03:38:26 MSK 2015


Hi Bob

Are you suggesting something along the lines of putting the callee's set -
or sets belonging to members of s group - on hold after sending the initial
INVITE? Or putting each group member's set on hold and leaving a call up -
but on hold - until a caller leaves a group?

So long as each set has two or more lines, normal calling should work, too:
each user would have their regular extension and an extension that's
dedicated to PTT type calls.

Is that along the lines of what you're suggesting, or am I completely
missing the mark?

Thanks,
Larry
Why not just use re-INVITEs with a=sendrecv and a=recvonly?



On Sun, Dec 13, 2015 at 2:26 AM, ik <idokan at gmail.com> wrote:

> The only PTT SIP protocol that I know of is the following:
> https://tools.ietf.org/html/rfc4964
>
> In theory, if a phone support the P-Answer-State header, it will work.
>
> On Fri, Dec 11, 2015 at 10:31 PM, Larry Morley <lmorley at neny.cslimits.net>
> wrote:
>
>> Mike (and anyone else who reads this):
>>
>> Is there a standard for PTT on SIP, either formal or ad hoc? If not, do
>> you know of anywhere there's a write up of an actual or a proposed
>> implementation?
>>
>> I'm interested in this functionality, too. We have a large public safety
>> market here that makes heavy use of PTT.
>>
>> Also, are you aware of any SIP capable PTT handsets? And any portables
>> that can carry both, for example, 800 band radio and GSM?
>>
>> Thanks,
>> Larry Morley
>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
>> consulting at freeswitch.org
>> http://www.freeswitchsolutions.com
>>
>> Official FreeSWITCH Sites
>> http://www.freeswitch.org
>> http://confluence.freeswitch.org
>> http://www.cluecon.com
>>
>> FreeSWITCH-users mailing list
>> FreeSWITCH-users at lists.freeswitch.org
>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>> http://www.freeswitch.org
>>
>
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://confluence.freeswitch.org
> http://www.cluecon.com
>
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org
>


_________________________________________________________________________
Professional FreeSWITCH Consulting Services:
consulting at freeswitch.org
http://www.freeswitchsolutions.com

Official FreeSWITCH Sites
http://www.freeswitch.org
http://confluence.freeswitch.org
http://www.cluecon.com

FreeSWITCH-users mailing list
FreeSWITCH-users at lists.freeswitch.org
http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
http://www.freeswitch.org
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.freeswitch.org/pipermail/freeswitch-users/attachments/20151213/251e4ed0/attachment-0001.html 


Join us at ClueCon 2016 Aug 8-12, 2016
More information about the FreeSWITCH-users mailing list