There's a three month trial period
verapamil diltiazem However, even small-scale revenue growth has been elusive for other big, corporate-tech firms of late, and Cisco is facing the same slower global economy and issues in the Chinese market relating to national security and domestic competition. Cisco also blamed part of its recent weakness on some newly launched products that customers are still evaluating. It may take a few quarters to see if those result in more sales.