A delegation of the BlackBerry mobile maker Research In Motion (RIM) led by their Vice President Robert E Crowe today met Home Secretary G K Pillai in the wake of the deadline set by the government to make their services awailable to the law enforcement agencies for security check by the end of this month. The government had warned yesterday that failure to do so would result in the shutting down of some of the mobile phone's popular services. Later Mr Crowe told reporters that he was optimistic about resolving the issue.There are an estimated one million BlackBerry subscribers in the country.