Contact Us

Cambridge 10 Canal Park, Suite 602 Cambridge, MA 02141 Phone: (617) 354-0600 Main Fax: (617) 452-9159 Directions	*Santa Clara* 3979 Freedom Circle, Suite 400 Santa Clara, CA 95054 Phone: (408) 969-9600 Main Fax: (408) 969-9601 Directions
*Sarasota* 106 Cattlemen Rd. Sarasota, FL 34232 Phone: (941) 554-5000 Main Fax: (941) 554-5012 Directions	Phoenix 4717 East Hilton Avenue, Suite 400 Phoenix, AZ 85034 Phone: (480) 443-6000 Main Fax: (480) 998-2469 Directions
Charlottesville 1180 Seminole Trail, Suite 150 Charlottesville, VA 22901 Phone: (434) 978-2200 Main Fax: (434) 978-2314 Directions	Germany Vertical Communications GmbH Domagkstrasse 7 85551 Kirchheim Germany Phone: +49 89 90779460 Fax: +49 89 90779488 Directions

Sales & Support Phone Numbers

TeleVantage® Sales Phone: (800) 914-9985 x2 Sales Fax: (617) 452-9158	TeleVantage Support Phone: (617) 491-2944
Comdial® Sales Phone: (800) 266-3425 x2 Sales Fax: (941) 554-5022	Comdial Support Phone: (800) 266-3425 x 4
Vodavi® Sales Phone: (888) 422-2305	Vodavi Tech Support Phone: (800) 356-7279
InstantOffice® Sales Phone: (800) 266-3425 x2 Sales Fax: (941) 554-5022	InstantOffice Support Phone: (877) 864-8324