Ok, 
 
I’ve found the post (copied below) I was looking for but I’m still messing with this and I don’t seem to be making any progress.  I may have something amiss in either sip.conf or extensions.conf?  Is there a good tutorial for asterisk/centos challenged users like myself?
 
 
 
in your Asterisk Dialplan, you need to invoke Rpt like this:
 
exten => Something,1,rpt,1234|P   (for Phone with function controlled PTT)
 
-or-
 
exten => Something,1,rpt,1234|Pv (for Voice-controlled PTT)
 
(examples given for node number 1234)
 
JIM WB6NIL
 
> Date: Sat, 14 Jan 2012 13:16:33 -0500
> From: wolthui3 at msu.edu
> To: app_rpt-users at ohnosec.org
> Subject: Re: [App_rpt-users] Softphone to the repeater Ports...
> 
> I would like to do this also.  Is there a document somewhere that shows 
> how to set it up for private LAN or for direct connection from a SIP 
> trunk?  I would like to tie my local Asterisk phone system into my 
> repeater, but not sure on the setup for the Allstar side.
> 
> Mike
> kb8zgl
> 
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> App_rpt-users mailing list
> App_rpt-users at ohnosec.org
> http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
 
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From: app_rpt-users-bounces@ohnosec.org [mailto:app_rpt-users-bounces@ohnosec.org] On Behalf Of Jeffrey S. Carrier
Sent: Tuesday, May 08, 2012 6:40 PM
To: app_rpt-users@ohnosec.org
Subject: [App_rpt-users] SIP smart phone client

I know I’ve seen this before but I can’t locate it after searching for nearly an hour.  The question; which android sip client is “best” with app_rpt and can anyone advise on the setup required on the allstar server?  Again, I apologize but I can’t seem to locate the original post anywhere.

73 de K0JSC