Improvement of CCR

1. Improvement of CCR

2. Improvement of CCR Loss of a Call, Means Loss of a Rupee

3. Improvement of CCR • Definition of CCR : • It is the ratio of Completed call and processed calls by the exchange

4. Improvement of CCR • Completed calls : • Only answered calls or • Answered + busy + NR calls

5. Improvement of CCR • Successful calls : • If Only answered calls are considered CCR will be low, where network has nothing to do. • If Answered + busy + NR calls are considered as effective, CCR will be better.

6. Improvement of CCR • DOT / BSNL order : • Only answered calls are to be considered for calculation of CCR.

7. Improvement of CCR

8. Improvement of CCR Target set by HQ • Junction Call = 61.64 • STD call = 56.07

9. Improvement of CCR • Network congestion • Checking of Routing / Analysis • Alternate Routing • Signaling traffic overload • Setting of MIN-MAX value • CCS7 en-block signaling • Use of voice mail

10. Improvement of CCR • Implementation of CCBS/CCNR • SMS alert in case of No-reply or Busy • Announcement in case of busy subscriber on CW • Implementation of parallel ringing • Proper announcement to educate the calling party about the status of called party • Network failure • Rack Loading • Proper Co-ordination with TX wing

11. Improvement of CCR Congestation in Network

12. Improvement of CCR • Regular monitoring of Junction status • Regular monitoring of Junction Occupancy • Immediate augmentation if Occupancy >0.7 • Route Diversity • Use of NMS

13. Improvement of CCR Periodic Checking of Routing / Analysis

14. Improvement of CCR • Periodic checking of exchange database • Checking with respect to Routing • Checking with respect to Charging • Checking with respect to MIN-MAX • Implementation of En-block Signaling in local network • Checking of proper over-flow of traffic • Checking of no-Loop in the network • Avoid unnecessary transit of Calls

15. Improvement of CCR Alternate Routing

16. Improvement of CCR • Alternate Routing should not create any LOOP • If traffic in alternate path is very less, 50:50 traffic should be given for proper utilization • ACD should have same characteristics with respect to original ACH • Avoid giving too many alternate Path • Use GMSC in case of PSTN to CMTS / UASO

17. Improvement of CCR Signaling Traffic

18. Improvement of CCR • Normally two COCs are created against each TG • Due to Mobile and IN signaling traffic is increasing • COC needs to be augmented based on traffic particularly on POIs • Signaling traffic is further increasing due to VAS services • Splitting of TG in case of > 1000 CIC

19. Improvement of CCR MIN-MAX Value

20. Improvement of CCR • Always use fixed numbering scheme • Always try to keep MIN=MAX to reduce unnecessary holding time i.e. use closed numbering scheme wherever possible • For this Create More ACH on same TG

21. En-block Signaling

22. Improvement of CCR • In CCS7 IAM, full address should go • Hence no SAM • Reduced holding time • CCR Improves

23. VOICE MAIL

24. Improvement of CCR • Use of Voice Mail will definitely help to increase CCR in case of Busy and No-reply • Our switches are not having in-built Voice Mail • We can go for revenue sharing model • Call forwarding to AMS on No-Reply condition by default from switch

25. S M S Alert

26. Improvement of CCR • SMS can be sent to called party having mobile, if his PSTN is NR or Busy. • Subscriber activate call transfer to voice mail • Voice Mail system will send SMS to a pre-defined mobile number • Call forwarding charge should be waived from the “B” number • Call forwarding on “No Reply” should be given by default

27. Announcement on CW

28. Improvement of CCR • Announcement to the caller in case of busy subscriber. • Caller will get announcement for 30 second • After 30 second announcement will change and request to caller to try after sometime. • Increase BSNL visibility and CCR also.

29. PARALLEL RINGING

30. Improvement of CCR • Parallel ring will increase both CCR and revenue. • Access code : 12268 • Available in EWSD technology • Should be available in all NT exchanges

31. Improvement of CCR Correct Announcement

32. Improvement of CCR Proper announcement to be given to educate the calling party about the status of called party to avoid unnecessary call attempt.

33. Network Failure

34. Improvement of CCR • In case of RLU / Main exchange failure proper announcement to be given to avoid unnecessary call attempt at the originating end on the specified level. • Artificial traffic in the network will affect CCR

35. Popular Phone-in Programme

36. Improvement of CCR • Very high call attempt • Termination is only on single DEL • Very high rejection • CSN rack problem • Very Very poor CCR • Always give lines on PRI

37. Rack Loading

38. Improvement of CCR • CSN wise traffic to be checked • Based on traffic, re-arrangement to be done • Particularly call center numbers to be monitored

39. Call Centre

40. Improvement of CCR • Call centers are taking connectivity on PRI • Very high traffic on said PRI • Preferable to give connection from SMT instead TAN3G • Traffic monitoring on all call Centers is a must

41. Inter-connect and Roaming

42. Inter-connect Traffic : • POIs having connectivity with CMTS is carrying roaming traffic • High increase in Roaming traffic • High increase in SMS traffic • PUPE overloading

43. SOLUTION : • Increase more COC with Private CMTS • Re-distribution of PUPE

44. Thank You