J.EL310

1. CUSTOMER-PREMISE SWITCHING SYSTEM FEATURES AND TELECOMMUNICATIONS CONVERGENCE С.Хандсүрэн (J.TC08D013) Д.Баасанжав (J.TC08D022) Б.Бодьсүрэн (J.TC08D707)

2. CUSTOMER-PREMISE SWITCHING SYSTEM FEATURESThe main purpose of both TDM and IP customer-premise switching systems is identical. They connect voice users in the office to one another and to external users over a pool of shared trunks. The differences lie in the way the two types of switch accomplish their objectives.

4. PBX features

5. Attendant features

6. PBX voice features

8. Call hold

9. Intercom

10. Supervisory signals

12. Automatic Route Selection (ARS)

13. Networking Option

14. Station Restrictions

15. Follow-Me Forwarding

16. Call Detail Recording (CDR)

17. Voice Mail

19. Automatic timed reminders

20. Busy lamp field

21. Direct station selection (DSS)

22. Directory features

24. Call blocking

25. Call coverage

26. Executive override

27. Forced account code

29. Personal call routing

30. Portable directory number

31. Priority ringing

32. Recorded announcement

33. Trunk answer any station

35. Lightweight Directory Access Protocol(LDAP) synchronization

37. TELECOMMUNICATIONS CONVERGENCE Convergence: Merging real-time applications such as voice, video, and instant messaging together with data onto a single broadband infrastructure that is based on IP.

41. Lower Cost of Ownership

42. Support a Mobile and Geographically Independent Workforce

43. Flexibility

44. Create Value-Added Service

45. Enriched User Experience

47. Flow control

48. security

49. Broadband penetration

50. Service complexity

51. Lack of carrier agreements

52. Carrier and regulator inertia

53. Reliability and avialability