Hi Anitha,
That's very dangerous. CIT systems conects with SAP CRM by XML files and there is no a BAPIs to do that.
Don't try that way, that's gonna be a hell. Always you have to look for certified connector.
http://www.avaya.com/master-usa/en-us/resource/assets/factsheet/svc3193-02.pdf
SAP CRM Integrated Communication Interface (CA-ICI)
Best regards.