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T-Mobil Germany From Voicemail to Unified Messaging Concepts Presentation at the VMA Conference Vienna, Austria. T-Mobil Germany. T-Mobil Network 100% subsidiary of the Deutsche Telekom AG T-D1 (GSM) More than 12 million active subscribers T-D1 Mobilbox Pre-Paid and Post-Paid versions
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T-Mobil GermanyFrom Voicemail to Unified Messaging ConceptsPresentation at theVMA Conference Vienna, Austria
T-Mobil Germany • T-Mobil Network • 100% subsidiary of the Deutsche Telekom AG • T-D1 (GSM) • More than 12 million active subscribers • T-D1 Mobilbox • Pre-Paid and • Post-Paid versions • Fix-mobile conversion product
T-D1-Mobilbox • Main Voicemail Product • T-D1 Mobilbox for every customer • Calls to/from Voicemail generate revenue • Highly reliable service and a good quality reached • Well accepted in the market • Heavy investment for hardware and software in the past
Where are we going to? • New fundamental Voicemail Services are not visible • What is the next stage of communication? • Combine Voicemailand Email Message to Unified Messaging Servicecreate a Unified Messaging Box (UMB)
Every thing new? • Keep in mind ! • Save the operators investment • Save the reliability • Add a new dimension to voice messaging, but keep the customer‘s telephony interface
EMS VMS SS/ISUP IP/Internet Parts of UMB Solution ?
Customer Expectations I • Typical login time to Email server is 7 to 30 sec • The .com world will accept this • Nobody will accept such a delay on a telephone interface • Voicemail Message and status information (e.g. you have „n“ new Voicemails and „m“ Emails incl. header information) must be presented without any delay
Customer Expectations II • No customer likes to change his telephone number or his Email address • Subscriber will expect well known intelligent notification schemes for all types of messages
Assumption for UMB product I • Messages will be primarily accessed via the appropriate interfaces • Voicemessages at the telephone as speech • Faxmessages with a fax machine • Emails with an E-Mail Client (Computer), Web Mail • To reduce the traffic between systems keep messages local until requested on other media
Assumption for UMB product II • Added value is generated by interworking functions as • Listen to E-Mails when on the move • Collecting voicemails when online (less important) • Unified overview over all messages received
Assumption for UMB product III • Existing features at the Voice interface must be available for the customer • Examples: „Notification Engine“ • HLR-Interrogation before Outcall notification (smart notification) • Automatic identification of the customer by CLI • Existing user interface
Technical solution: EMC • EMC: Enhanced Message Collector • Flexible interface between Voicemail and Email systems • Interfaces three systems: • Voicemail system • E-mail storage (EMS) • Large directory engine (LDE)
EMC: Open Interfaces • All parts of the concept should be based on open standards • A candidate could be IMAP 4 for interfacing VMS/EMS • POP3 may be used instead but • raises some security problem • does not allow for intelligent management of the message box • LDE accessed by LDAP (X.500)
VMS EMS IP/Internet Adminstration- Systems Architecture EMC Concept SS/ISUP EMC Enhanced Message Collector WAP- Proxy WEB- Portal Large directory engine
EMC Interfaces via IMAP4: • Internal routing of messages • Transmission of Emails to a text to speech engine at the VMS • Transmission and conversion of Voicemail to Email Systems in standard audio format like *.wav) • Telefax conversion to *.tif • Initialization of the notification functions of the VMS
Large Directory Engine: • Large Directory Engine used for • Administration interface • Special secured storage of Log-ins for EMS and VMS • Customer address book etc. • Note: • Password entrance of EMS defined by ISP • VMS Entrance secured by CLI / SIM or password
Summary • All telephone operators have a voicemail system • Development of new VMS Services fades out • Investments should be saved • Go internet • My mission: • Bind the worlds • use EMC concept
Thank you Michael Möhlenhof Michael.Moehlenhof@T-Mobil.de Tel: +49 228 936 3202 Mobile:+49 171 2004008 Fax: +49 171 13 2004008