CUCM Sending CDR to multiple billing servers

[ichehouri]

Hi all,

i have CUCM cluster 8.0(3). the cluster is distributed over the WAN in two different sites.

- site A have publisher and 3 subscriber servers

- site B have 2 subscriber servers

Site A users are registered on the local subscriber servers on site A and site B users are registered on the local subscriber servers on site B

Also i have remote sites registered over the WAN. 50% of the remote sites register to site A subscriber as primary and backup on site B subscriber and the other 50% is registered to site B as primary and backup on site A. Remote branches have PSTN calls from the local site gateway which also serve as SRST gateway (H323)

i have existing billing server in site B for the local users in the same site. My customer purchased another billing server for site A and i have the following concerns:

1- when adding more than one billing server in the servesibility page, does it mean that all call logs for all locations will go to the list of billing servers configured so that duplicate copy is sent?

2- how can i have CDR logs from specific subscriber be sent to specific billing server? I am asking this question because i am wondering about the transactions over the WAN

3- My customer will require in the future to have billing for the remote branches (note that iam using centralized call processing). What is the best way and location to have this billing server? and what about using the existing one

regards,

Ibrahim

[Jaime Valencia]

1 yes, all will have the same info

2 you can't

3 place it where the CDR repository manager is running.

Understanding Cisco Call Detail Records

http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/service/8_0_2/cdrdef/cdrund.html

CDR Repository Manager

Within a Cisco Unified Communications Manager server or cluster, one  instance of the CDR Repository Manager runs on the CDR Repository server  or node. It manages CDR files that are received from the Cisco Unified  Communications Manager nodes and periodically sends the files to the  specified customer/third-party billing servers via FTP/SFTP.

When the file arrives on the CDR Repository server or node, the CDR  Repository Manager detects it. The system archives the file in a  directory that is dedicated to the date that is indicated by the UTC  timestamp that was placed in the file name when the file was created.

If any external billing server is specified in the CDRM configuration,  the system creates an empty file in each of the corresponding folders  for CAR and the billing servers, if CAR or the corresponding billing  server is activated. The CDR Agent monitors new CDR/CMR files that are  generated on CallManager servers or nodes by the call processing  component. It sends the files to the CDR Repository node and then  deletes the local copy after the file is pushed out. The file sender  component of the CDR Repository Manager detects these empty files and  sends the file to the destination with the specified method. If the  delivery is successful, the system removes the empty file in the  destination directory.

Every Cisco Unified Communications Manager can generate one CDR file and  one CMR file every minute for up to 1 hour. You can configure the  maximum disk space that is used for storage of CDR files in the CDR  Repository through provisioning.

The File Manager component of the CDR Repository Manager runs hourly.  When the File Manager runs, it deletes files with dates outside the  configured preservation duration. It also checks whether disk usage has  exceeded the high water mark. If so, the system deletes the processed  CDR files until the low water mark is reached, starting with the oldest  files. However, if any CDR file to be deleted was not successfully sent  to the specified billing server, the system leaves it in the CDR  Repository and raises a notification or alarm. The system creates a flag  file during the configured maintenance window, which denies access to  the CDR files for the CDR onDemand Service. The system removes the flag  file after the maintenance window expires.

HTH

java

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[ichehouri]

Hi,

thanks for the explanation

now i am having CDR repository manager running on all servers. which call manager server send the CDR files? note that phones are registered with multiple servers. do i have to disable this service on all the cucm servers except one?

if i have site A with subnet 192.168.1.X/24 and site B with 192.168.2.X/24 and my billing server is in site B then is the CUCM smart enough to send the CDR from the local cucm server in site B? or what is the mechanisim used

regards,

Ibrahim