Interface Digital Solutions Pvt. Ltd. Supplies PC Based and Standalone Call Logger. Interface Digital Solutions Pvt. Ltd. Offers office automation & telecom solution. PC Based and Standalone Call Logger is a piece of equipment which helps in call recording or call monitoring. PC Based and Standalone Call Logger can cater from 1 to 128 lines on a single machine. This equipment gives reports of called & calling number, date & time stamp, password protection, grouping, search by date & time and email alerts.