Jielun Science and Technology Science China
General office
Jielun Science and Technology Science
Xianggeli route 71
Hongkong
,230000
China
Phone: 8613554884992
Jielun Science and Technology Science
Xianggeli route 71
Hongkong
,230000
China
Phone: 8613554884992
- Voip Termination ISP
- E1 Bulk Wholeseller
- Quintum
- VoiceMaster
The system of Classes of Service (COS) helps defining rights for one or another extension in the PBX or Centrex systems. For example, few groups require more space for storing voice messages, while other need the redirection of calls to cell phones, the third does not have to make calls outside of the office network. With the help of this system one can change and configure settings.
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