Transcript Power point Presentation on CCR Improvement

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Improvement of CCR
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Improvement of CCR
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Improvement of CCR
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Definition of CCR :
 It is the ratio of Completed call and
processed calls by the exchange
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Improvement of CCR
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Completed calls :
Only answered calls
or
Answered + busy + NR calls
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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.
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DOT / BSNL order :
 Only answered calls are to be
considered for calculation of CCR.
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Target set by HQ
 Junction Call = 61.64
STD call
= 56.07
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 Network congestion
 Checking of Routing / Analysis
 Alternate Routing
 Signaling traffic overload
 Setting of MIN-MAX value
 CCS7 en-block signaling
Use of voice mail
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 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
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 Regular monitoring of Junction status
 Regular monitoring of Junction Occupancy
 Immediate augmentation if Occupancy >0.7
 Route Diversity
 Use of NMS
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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
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 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
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 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
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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
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 In CCS7 IAM, full address should go
 Hence no SAM
 Reduced holding time
 CCR Improves
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 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
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 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
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 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.
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 Parallel ring will increase both CCR and revenue.
 Access code : 12268
 Available in EWSD technology
 Should be available in all NT exchanges
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Proper announcement to be given to educate the calling
party about the status of called party to avoid
unnecessary call attempt.
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 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
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 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
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 CSN wise traffic to be checked
 Based on traffic, re-arrangement to be done
 Particularly call center numbers to be monitored
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 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
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Inter-connect Traffic :
 POIs having connectivity with CMTS is carrying
roaming traffic
 High increase in Roaming traffic
 High increase in SMS traffic
 PUPE overloading
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SOLUTION :
 Increase more COC with Private CMTS
 Re-distribution of PUPE
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