+ ImCr . (; <>Undeliverable: Re: H.323 call over gateway question3077949C05DBD111AB1000A0C9B427E901306AEE@EXCHANGESERVERc=US;a= ;p=Ganymede Softwar;l=EXCHANGESERVER9907140423490656 M -vsc ITU-SG16@MAILBAG.INTEL.COM.COMEwLsReceived: by EXCHANGESERVER with Internet Mail Service (5.5.2232.9) id <36Y0SH99>; Wed, 14 Jul 1999 00:23:55 -0400 Message-ID: 3077949C05DBD111AB1000A0C9B427E901306AEE@EXCHANGESERVER From: System Administrator postmaster@Ganymede.com To: ITU-SG16@MAILBAG.INTEL.COM Subject: Undeliverable: Re: H.323 call over gateway question Date: Wed, 14 Jul 1999 00:23:54 -0400 X-Mailer: Internet Mail Service (5.5.2232.9) X-MS-Embedded-Report:

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----- Message-ID: 003001becdae$193e7600$e1ee558b@ddw.hss.hns.com From: Ravi Kiran Valmikam vrkiran@MAILANDNEWS.COM To: ITU-SG16@MAILBAG.INTEL.COM Subject: Re: H.323 call over gateway question Date: Wed, 14 Jul 1999 00:05:17 -0400 X-Mailer: Internet Mail Service (5.5.2232.9) X-MS-Embedded-Report:

----- Original Message ----- From: Christian Geng christian.geng@DETEWE.DE

Dear Sir or Madame,

We want to setup a call from a H.323 terminal to an endpoint placed in the PBX. This call should be via gatekeeper. Shoul first a setup been done to the gatekeeper?

No. It should start off with ARQ.

How can the endpoint (callee) on the other side of the gatekeeper be addressed?

Terminal should send an ARQ to the GK with the alias or PBX terminal number. GK will either give the terminal an H.225 Call Signaling Transport Address of the GW or itself(GK) in ACF. Terminal shall simply send a Setup on that address.

When we do first the setup to the gatekeeper, we will put in the H.225.0 Setup-UUI/destinationAddress the AliasAddress of the gatekeeper. Is this right?

No. You will fill the destination endpoint address(alias or PBX number) and send it to GK.

And were can we put in the address of the PBX endpoint (callee)? Thanks

If you are talking about Gatekeeper Routed Calling, please refer to section 8, esp 8.2 of H.323. I am attaching a small sequence diagram for further clarifications.

regards, Ravi/Sunil

--------------------------------------------------------------------- Ravi Kiran Valmikam VoIP Gateway Group Hughes Software Systems Plot 6, Sector 18, Gurgaon, 122015-HR INDIA Ph (off) +91-124-346666 Ext: 2989, 2990 (res): +91-11-5511011 Fax(off): +91-124-342415

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