Grandstream Networks GXP280 사용자 설명서

Grandstream Networks, Inc.

1297 Beacon Street, 2nd Floor

Brookline, MA 02446. USA

Tel : +1 (617) 566 – 9300 

Fax: +1 (617) 249 – 1987 

www.grandstream.com

For Warranty and RMA information, please visit www.grandstream.com