[h323plus] Using a gatekeeper without registration ARQ/DRQ messages only

[Mark Fawcett]

Many thanks, much appreciated.


On 10 Nov 2010, at 13:18, Simon Horne wrote:

> Mark
> 
> Don't use SetAssignedGatekeeper() this function required H.323v6 compliance
> which most endpoints don't support. Use AlternateGatekeeper instead.
> 
> AS far as I am aware it is not valid to only handle ARQ/DRQ and not the
> registration tho' I would need to read the standard to be certain.  GnuGk
> which is based on H323plus has the ability to handle unregistered calls. It
> does so by creating a listener on TCP 1720 and rewriting the destination
> address (much like an ARQ/ACF function) of the setup message and forwarding
> on the Call signaling messages to the required destination.  There is no
> registration, all calls are made to the same address and the gatekeeper
> interprets the destination field to determine where to route the call. The
> client dials destination@{gk ip} or  {g kip}##destination and the gatekeeper
> does the rest.
> 
> I would suggest creating a TCP 1720 listener and creating a lightweight
> endpoint and  H323Connection and rewriting addresses and forwarding on the
> H.225 Messages. 
> 
> Simon
> 
> -----Original Message-----
> From: h323plus-bounces at lists.packetizer.com
> [mailto:h323plus-bounces at lists.packetizer.com] On Behalf Of Mark Fawcett
> Sent: Wednesday, November 10, 2010 8:13 PM
> To: h323plus at lists.packetizer.com
> Subject: [h323plus] Using a gatekeeper without registration ARQ/DRQ messages
> only
> 
> All,
> 
> We have a request from a client to be able to use an external H323
> Gatekeeper, without registering with that gatekeeper. In brief they are
> requesting that ARQ/DRQ messages only are sent to the GK and no RRQ/IRR.
> 
> I have started to look into overriding the H323Gatekeeper class and
> providing a new gatekeeper (via SetAssignedGatekeeper() with a
> m_needToRegister=0) but am not certain if [a] this is the correct way to do
> this [b] whether there is an easier method or [c] whether the requirement
> can be met with h323plus (or is actually valid).
> 
> Your comments would be much appreciated.
> 
> Many thanks
> 
> Mark
> 

Mark Fawcett
Managing Director
+44 (0)7976 240171 (M)
+44 (0)8454 336886 (x1001) (L)
www.noakesltd.co.uk


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