| Customization: | Available |
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| Type: | Telephone System PBX |
| Port Number: | 16~48 |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
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| Payment Methods: |
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| Support payments in USD |
| Secure payments: | Every payment you make on Made-in-China.com is protected by the platform. |
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| Refund policy: | Claim a refund if your order doesn't ship, is missing, or arrives with product issues. |
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| Model | CS424 | |
| Capacity | CO Capacity(Min/Max) | 4 |
| Extension Capacity(Min/Max) | 24 | |
| Expandability | No | |
| No. of Port on C.O. Card | No | |
| No. of Port on EXT Card | No | |
| Wireless expansion Board | No | |
| Wireless trunk type (GSM/CDMA) | ||
| Max wireless trunk lines | ||
| External Hardware Interface |
keyphone interface | No |
| Door Phone | No | |
| Door lock opener | No | |
| External Broadcasting Interface | No | |
| External Music on Holding | Yes | |
| RS232 Series port | No | |
| Backup Battery Interface | Optional | |
| Operator | keyphone interface | No |
| Operator/Auto-attendant Mode | Yes | |
| Operator designation | Yes | |
| Day/Night Mode(Auto) | No | |
| Day/Night Mode(Manual) | No | |
| Music & Ringing | Recordable OGM(outgoing messae) | Yes |
| 10 Seconds | Yes | |
| 20 Seconds | No | |
| 50 Seconds | No | |
| 60 Seconds | No | |
| 90 Seconds | No | |
| Internal Music on Holding | Yes | |
| External Music on Holding | Yes | |
| 11 Chord Melody Music Selectable | No | |
| Ringing Assignment(CO-Ext group) | Yes | |
| Ring Identify | Yes | |
| System CRBT | Yes | |
| Caller ID | External Caller ID | Yes |
| Transfer Caller ID | No | |
| Intercom Caller ID | No | |
| Call Operation |
Call Transfer | Yes |
| Call Forwarding | Yes | |
| Outgoing Call Transfer | Yes | |
| CO to CO Transfer | Yes | |
| Call Switch (pickup in conversation) | Yes | |
| Call Pickup (External call) | Yes | |
| Call Pickup (Internal call) | No | |
| C.O. Line Reservation(Call waiting) | Yes | |
| C.O. Line Booking | Yes | |
| Specific C.O. Line Dialing | Yes | |
| Call All Extensions | Yes | |
| Three Way Conference | Yes | |
| Do Not Disturb | Yes | |
| Auto/Manual Dial-Out Mode | Yes | |
| Internal Hot Line | No | |
| Internal Fast Dialing | No | |
| Abbreviated Dialing | No | |
| Auto IP Dialing | No | |
| Private Password | No | |
| Redial in Indirect-dailing-out mode | No | |
| Billing & Management Software |
Billing Software (include program) | No |
| Reverse Polarity Signal | No | |
| Alarm clock | No | |
| Other Feature |
Call Restriction | Yes |
| Call Duration Control | Yes | |
| C.O. Line&Exts Monitor | Yes | |
| Exts. Groups | No | |
| External Line Group | No | |
| Ringing Assignment | Yes | |
| Real Time Clock | No | |
| Intelligent Routing(LCR) | No | |
| Flexible coding(change Ext.No.) | Yes | |
| Automatic Ext. Reporting | Yes | |
| Flash Time Choice | Yes | |
| System Password | Yes | |
| Automatic C.O. Line Detection | No | |
| Remote Programming | Yes | |
| Memory Protect while Power off | Yes | |
| Multiple Communications Channel | 7 | |
| Fax Detection | No | |
| Power Failure Transfer | Yes | |
| Lightning Protection | Yes | |
| Housing Material | Plastic | |
| Power supply | Normal Transformer Power | Yes |
| Switch Power | Optional | |
| Backup Battery Interface | Optional | |
| PBX | 1 | PC |
| Color box | 1 | PC |
| User manual (CD) | 1 | PC |
| PC billing management CD | 0 | PC |
| Power plug(different standard) | 1 | PC |
| Audio cable | 2 | PCS |
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