2. Michael Möhlenhof T-Mobil;Systemtechnology 22.01.2016 page:1 T-Mobil Germany From Voicemail to Unified Messaging Concepts Presentation at the VMA Conference Vienna, Austria

3. Michael Möhlenhof T-Mobil;Systemtechnology 22.01.2016 page:2 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

4. Michael Möhlenhof T-Mobil;Systemtechnology 22.01.2016 page:3 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

5. Michael Möhlenhof T-Mobil;Systemtechnology 22.01.2016 page:4 New fundamental Voicemail Services are not visible What is the next stage of communication? Where are we going to?  Combine Voicemail and Email Message to Unified Messaging Service create a Unified Messaging Box (UMB)

6. Michael Möhlenhof T-Mobil;Systemtechnology 22.01.2016 page:5 Keep in mind ! Save the operators investment Save the reliability Add a new dimension to voice messaging, but keep the customer‘s telephony interface Every thing new?

7. Michael Möhlenhof T-Mobil;Systemtechnology 22.01.2016 page:6 Parts of UMB Solution ? SS/ISUP VMS EMS IP/Internet

8. Michael Möhlenhof T-Mobil;Systemtechnology 22.01.2016 page:7 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 I

9. Michael Möhlenhof T-Mobil;Systemtechnology 22.01.2016 page:8 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 Customer Expectations II

10. Michael Möhlenhof T-Mobil;Systemtechnology 22.01.2016 page:9 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 I

11. Michael Möhlenhof T-Mobil;Systemtechnology 22.01.2016 page:10 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 II

12. Michael Möhlenhof T-Mobil;Systemtechnology 22.01.2016 page:11 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 Assumption for UMB product III

13. Michael Möhlenhof T-Mobil;Systemtechnology 22.01.2016 page:12 EMC: Enhanced Message Collector Flexible interface between Voicemail and Email systems Interfaces three systems: Voicemail system E-mail storage (EMS) Large directory engine (LDE) Technical solution: EMC

14. Michael Möhlenhof T-Mobil;Systemtechnology 22.01.2016 page:13 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) EMC: Open Interfaces

15. Michael Möhlenhof T-Mobil;Systemtechnology 22.01.2016 page:14 Architecture EMC Concept EMS IP/Internet SS/ISUP VMS EMC Enhanced Message Collector WAP- Proxy WEB- Portal Large directory engine Adminstration- Systems

16. Michael Möhlenhof T-Mobil;Systemtechnology 22.01.2016 page:15 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 EMC Interfaces via IMAP4:

17. Michael Möhlenhof T-Mobil;Systemtechnology 22.01.2016 page:16 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 Large Directory Engine:

18. Michael Möhlenhof T-Mobil;Systemtechnology 22.01.2016 page:17 All telephone operators have a voicemail system Development of new VMS Services fades out Investments should be saved Go internet Summary My mission: Bind the worlds use EMC concept

19. Michael Möhlenhof T-Mobil;Systemtechnology 22.01.2016 page:18 Michael Möhlenhof Michael.Moehlenhof@T-Mobil.de Tel: +49 228 936 3202 Mobile:+49 171 2004008 Fax: +49 171 13 2004008 Thank you