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OMTP VISUAL VOICEMAIL INTERFACE SPECIFICATION v1.2<br />
Message-Context<br />
Description: Determines the message context.<br />
This header is mandatory.<br />
For MDN and DSN message types, this header<br />
specifies the original message type<br />
This header is mandatory.<br />
Legal Values: Voice-message<br />
Video-message<br />
Fax-message<br />
X-empty-call-capture-message<br />
X-number-message<br />
X-voice-infotainment-message<br />
Default Value: N/A<br />
Content-Duration<br />
Description: Defines the length of the message, and is<br />
returned only for voice and video messages.<br />
This header is mandatory for voice and video<br />
messages.<br />
Legal Values: Length of voice or video content, in seconds.<br />
Default Value: N/A<br />
© 2009 OMTP Ltd. All rights reserved. No part of this document may be reproduced or<br />
transmitted in any form or by any means without prior written permission from OMTP Ltd.<br />
Page 22 of 82<br />
OMTP PUBLISHED