3GPP TSG-T2 SWG3 MMS ad hoc
Tel Aviv, Israel
11th-13th April, 2000	T2M00037 	

Liaison Statement

From:	TSG-T2	

To:	TSG-SA1, TSG-SA2, TSG-CN5

Cc:	

Subject:	Multimedia messaging service (MMS) support of VHE in release 2000

Contact:	Tim Ambrose
	Motorola
	+44 1256 790377
	Tim.Ambrose@motorola.com

Attachments: 	none	

___________________________________________________________________________

The support of VHE is a MMS stage 1 requirement that has not yet been realised.

T2 is currently considering items to be supported in the release 2000 version of the MMS stage 2 specification (23.140) and seeks advice on how the architecture of MMS can be designed to fully support VHE/OSA. 

The group has concluded that the support of the VHE concept may already be fulfilled in the case where a roaming user gains direct access to the ‘home’ MMS server, allowing the receipt of notifications and the transfer of messages between the client and the server.   However, it is not clear if this model of operation will be the only way of supporting roaming as use of a ‘foreign’ MMS may be required in some situations.  Consequently, where this kind of roaming scenario is envisaged, T2 requests detailed feedback on how MMS under VHE may be achieved.

Additionally,  implementation of MMS network elements in OSA may require new network APIs to support, for example, access and update of user profiles,  access to subscription data, address translation and selection of bearers, etc.  Therefore, T2 requests that consideration be given to the needs of MMS in the future development of APIs and that feedback be given to T2 on how it should communicate the requirements of MMS in the development of these APIs.

T2 eagerly awaits feedback on these matters and looks forward to working closely with S1, S2 and CN5  to solve these issues.