I am Lucy Lu from great-elec, www.great-elec.com
We are the manufacturer of IP phones and IP cameras.
5 SIP lines and 1 PSTN line make your exchange calls from VoIP and PSTN.
Contact me if you need.
Foreign Trade Department
Zhengzhou Great Electronic Tech Co.,Ltd
Address: Building68,Headquarters, No.1 the Cuizhu Street high-tech development Zone,Zhengzhou, Henan, China
msn: firstname.lastname@example.org skype: lxhzspy
Tel: 86-371-67896178 Fax: 86-371-67896128 Mobile: 86-13838511830