Hi Varadarajan,
You can check a few points:
>> Jabber for Android version is 9.6 or later
>> Jabber client must have the certificate authority that was used to sign the Expressway-E's server certificate in their list of trusted CAs.
The complete configuration can be verified using the deployment guide
http://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/expressway/config_guide/X8-5/Mobile-Remote-Access-via-Expressway-Deployment-Guide-X8-5.pdf
HTH
Manish