Hello Sasha, In thus case the text encoding would use H.248.15 Gateway control protocol: SDP H.248 package attribute. Regards, Christian Sasha Ruditsky wrote:

Hi Christian

Thanks.

One more question. In H.248.19 most of the properties inside packages are specified to be "Defined in: Local/Remote".

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From what I know about H.248 -- local/remote descriptors contain SDP messages.

How do the H.248.19 properties coexist with SDP? Is it only possible in binary encoding mode?

Thanks, Sasha

-----Original Message----- From: Christian Groves [mailto:christian.groves@ERICSSON.COM] Sent: Thursday, June 16, 2005 12:35 AM To: Sasha Ruditsky Cc: itu-sg16@external.cisco.com Subject: Re: The question about extension of an H.248 package.

Hello Sasha,

There is no hard rule of what to propose. It really depends on the type of information you want added.

I think the only time the package extension should be used is if the added properties/signals/events provide a set of functions of their own right. e.g. would it makes sense that these properties could be a package by themselves but need another package to operate. For example: The tone gen package. The DTMF was added as a extension package as DTMF generation is its own subset functionality but is related to the generation of tones.

Regards, Christian

Sasha Ruditsky wrote:

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Hi

I'm working on a proposal for July meeting to add some new properties to one of the H.248.19 packages.

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From H.248 document it appears that there are defined (at least) two ways of doing this.

* Creating a new version of an existing package * Creating a new package that extends the existing one.

Can somebody please comment on the factors helping to determine which of these two mechanisms should be uses?

Thanks, Sasha .