Question : Enable Blackberry to use SIP in our Cisco Call Manager 6.1

Dear Experts

Is there any free solution to enable Blackberry Mobile to use SIP to connect using my Cisco call manager 6.1?
Please note that I have Blackberry Enterprise server version 4.1 and also CUCM version 6.1
and I have the new ASA and exchange 2003 , Please send me the steps of there is any ?

Thanks

Answer : Enable Blackberry to use SIP in our Cisco Call Manager 6.1

Cisco does seem to support blackberry....
http://www.cisco.com/en/US/docs/voice_ip_comm/cumc/3_0/english/blackberry/quickstart/guide/cumc_bb_qs.html