Re: Dial by IP fails

"Andrew Struiksma" <astruiksma@xxxxxxxxxx> · Wed, 16 Jul 2008 16:30:42 -0700

It appears that my calls are failing because of "routeCallToGatekeeper." 
Does ArjReasonRouteCallToGatekeeper have anything to do with 
this?

Andrew 
Struiksma
K20 Network Support Specialist - NW Regional Video 
ITU
Northwest Educational Service District

  From: 
  openh323gk-users-bounces@xxxxxxxxxxxxxxxxxxxxx 
  [mailto:openh323gk-users-bounces@xxxxxxxxxxxxxxxxxxxxx] On Behalf Of 
  Andrew Struiksma
Sent: Monday, July 07, 2008 3:03 
  PM
To: GNU Gatekeeper Users
Subject:  
  Dial by IP fails

  I just discovered 
  that I cannot dial out through our proxy GK by IP address. We can only dial 
  via E.164 extension. All my video end points are NATed behind the GK. 
  Typically we dial via E.164 extension and our GK sends all the signal traffic 
  to the state gatekeeper. 
  What could be 
  causing this problem?

  The typical signaling path for a call made using an E.164 extension is as 
  follows:

  our video endpoint<-->our proxy 
  GnuGK<-->state GnuGK<-->remote video endpoint

  I've compared the log of a call to the 
  same end point via IP address and E.164 extension. Here are the differences 
  that I've discovered:

  IP--no ARQ is sent to state 
GK
  IP--no "IE: Called-Party-Number" in the 
  section labeled "ProxyChannel.cxx(842)   Q931    
  Received: {"
  IP--no message such as 
  "ProxyChannel.cxx(1627)  Q931s   GWRewrite source for 
  10.2.5.127:1030: call record"
  IP--proxy channel 
  "ProxyChannel.cxx(899)   Q931d   Received: 
  Facility"
  Ext--proxy channel 
  "ProxyChannel.cxx(899)   Q931d   Received: 
  Alerting"
  IP--has this section:

   h323_uu_pdu = 
  {
      h323_message_body = facility 
  {
        protocolIdentifier = 
  0.0.8.2250.0.4

  alternativeAddress = ipAddress 
  {
          ip =  4 
  octets 
  {
            <IP 
  of state GK>

  }
          port = 
  1720

  }
        conferenceID =  16 octets 
  {
          02 2a cf 3c 39 f7 
  19 17  2a 96 63 60 19 de bf 8d   
  .*.<9...*.c`....

  }
        reason = routeCallToGatekeeper 
  <<null>>

  IP--the call is cleared with this 
  message:

  ProxyChannel.cxx(842)   
  Q931    Received: {
  q931pdu = {

  protocolDiscriminator = 8
    callReference = 
  21162
    from = originator

  messageType = ReleaseComplete
    IE: Cause - Normal call 
  clearing = {
      80 
  90                                              
  ..
    }
    IE: User-User = 
  {
      25 c0 06 00 08 91 4a 00  04 80 01 00 
  11 18 11 00   %.....J.........
      02 
  2a cf 3c 39 f7 19 17  2a 95 63 60 19 de bf 8d   
  .*.<9...*.c`....
      01 00 01 40 10 80 01 
  00                            
  ...@....
    }
  }
  h225pdu = 
  {
    h323_uu_pdu = {

  h323_message_body = releaseComplete 
  {
        protocolIdentifier = 
  0.0.8.2250.0.4
        reason = 
  facilityCallDeflection <<null>>

  How can I correct this problem so that I 
  can complete calls via IP address?

  Thanks!

  Here is my INI 
  file:

  -----------------------------------------------------------------
  [Gatekeeper::Main]
Fortytwo=42
Name=NWESD-GK1
ExternalIP=<GK 
  IP>

  [RoutedMode]
GKRouted=1
H245Routed=1
CallSignalPort=1720
EndpointSignalPort=1721
CallSignalHandlerNumber=5
AcceptNeighborsCalls=1
SupportNATedEndpoints=1
Q931PortRange=20000-20015
H245PortRange=30000-30015
AcceptUnregisteredCalls=1
SupportCallingNATedEndpoints=1

  [Proxy]
Enable=1
ProxyForNat=1
ProxyForSameNAT=0
T120PortRange=40000-40015
RTPPortRange=50000-50099

  [Endpoint]
Gatekeeper=<state GK IP>
  Type=Terminal
Vendor=GnuGK
H323ID=NWESD-GnuGK1
E164=00114790801488

  [RasSrv::ARQFeatures]
CallUnregisteredEndpoints=1

  [RasSrv::RRQFeatures]
SupportDynamicIP=1
OverwriteEPOnSameAddress=1
-----------------------------------------------------------------

  Andrew 

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