製品仕様：

• Three-way conferencing: support
• program by analog phone: Yes
• モデル番号: SV308
• 銘柄: vtelecom
• IS09001: yes
• Intercom call: Yes
• Extensions: 8 Extensions
• Certificate: CE
• Caller ID: YES
• Call hold, transfer: support
• C.O Lines: 3 Lines
• Analog pbx: Yes