Web-based Configuration 100 Available SIP extension for SMB ( Small and Medium Business customer) 20 concurrent Caller ID, Call Back, Call Waiting, Call Transfer ( Blind Transfer & Attend Transfer) , ....
voip, ip pbx, voip pbx, china voip manufacturer Houyuan Techology ( HK) Limited was founded in 2009 with headquarter located in Shenzhen and branch office in HK , suzhou. There are several....