Setting up with 3cx server

Hello All,

I have downloaded and installed Flash Media Server 4.5 and Gateway 2 Preview.  I can call myself (using the example softphone) internally (dialing 1002 1003 ect).  I am now trying to get this setup with 3CX SIP Server but running into a few problems.  I have added an extension in 3CX (Extention 201) and modified the sip.xml to what's listed below.

<Profile>

            <profileID>sipGateway</profileID>

            <userName>201</userName>

            <!-- SIP username used inside Authentication header. This tag is optional and defaults to <userName> -->

            <password>mypassword</password>

            <displayName>201</displayName>

            <!-- this is the Ip address of remote server where FMG registers -->

            <remoteSipHost>localhost:5060</remoteSipHost>

            <!-- Indicates FMG registers at remote server -->

            <doRegister>1</doRegister>

            <context>sipGatewayContext</context>

            <supportedCodecs>

                <codecID> G711u </codecID>

            </supportedCodecs>

        </Profile>

In 3CX I can see that nothing is registering to the server as 3CX is stuck red "Not Registered".  In the softphone when I dial 201 I get immediately hung up on.  Now I have been digging around and see an extension in workflow.xml (777 and 888).  I can dial 777 and it looks like that is doing something in the softphone for a minute but eventually gets hung up on.

Subscribing to CallLeg Stream: fmg/telephony/23

PushNewStream: 1005

Codec:NellyMoser

Audio Rate:8

received leg status:leg.state.init

received leg status:leg.state.ring

received leg status:leg.state.sendrecv

Received leg indication:message.indication.progress

NetStream.Publish.Start

NetStream.Play.Reset

NetStream.Play.Start

NetStream.Play.UnpublishNotify

received leg status:leg.state.hangup

NetStream.Play.Stop

Can anyone please help me as I am now officially stuck and don't know where to go from here.  If you are interested, I work overseas most of the year and don't have international calling on my phone, so I am hoping that I can connect my landline up to the pbx, then when overseas I will just be able to go on the website and use my phone land line to make calls locally.  Any help would be appreciated, thank you for your time!

Tony