8 to 1280 PORTS

The Wise Investment Choice

GDS - The platform for today and tomorrow

GDS(Global Digital System) is a feature-rich platform that meets existing telecommunication requirements and offers future-proof migration solutions. The system provides external interfaces to PSTN, ISDN (BRI, PRI), E1/T1, DID, E&M and VoIP via the Internet, along with feature-packed digital keyphones, traditional analog and wireless-handsets. The GDS Series integrates seamlessly with many application programs to diversify itself to an advanced Communication System Platform. The versatility of the GDS System permits it to adapt to future Internet-enabled technology for voice, data and security applications. This integrated IP-based capability protects your investment and ensures a wide range of options for expanding your information and communication infrastructure as your business grows.

Teamwork makes the difference

IP-CTI (IP-based Computer Telephony Integration) technology

Intranet and Internet are utilized more than ever and will soon be a standard media for the exchange of information. With GDS CT Star software, bundling many applications, to streamline team processes and raise productivity is a reality.

With IP Connectivity, users can retrieve their Voice Messages from their own desk or wherever they are. Check your colleague os attendance status and his or her absent message, leaving and reviewing your messages, monitoring company call traffic and total call cost on line. GDS gives your team members many imaginative ideas to work with.

Bypass toll charges between locations and more....

Leverage the power of DSL and Cable Modem technology along with the GDS Series VoIP solution to create a Virtual Private Network between office locations.
By using the in-skin VoIP Trunks (G2-VIU) you are in business!
Executives and remote teleworkers can access the VPN from their home office by using the HYBREX VoIP telephone set!



1. Account Code Capability
2. Alarm - Station
3. Answer Call Waiting
4. Automatic Answer-Intercom
5. Automatic Attendant *
6. Automatic Call Back (Camp-On)
7. Automatic Line Access
8. Automatic Redial
9. Data and Time backup without Battery
10. Day and Night Service
11. Call Waiting
12. Call Transfer
13. Call Forwarding (Follow Me)
14. Camp On
15. Conference for more parties
16. CLI on both External and Internal Call *
17. CTI Integration *
18. Check In and Check Out
19. DID Trunk *
20. Direct Call Pick Up
21. Directory Dial for Speed Dial
22. Direct Inward System Access *
23. Distinctive Dial Tone and Ringing
24. Doorphone Calling and Opening *
25. Executive Override (Barge-In)
26. E & M Trunk *
27. Flash (Open Loop Timed Flash)
28. Hunt Group
29. Last Number Redial
30. Line Reverse Detection
31. Lock / Unlock Extensions
32. Multiple Music On Hold *
33. Macro Keys
34. One Touch Dialling
35. Paging / Meet-Me Page
36. Privacy Release
37. Programmable Keys
38. Security Code
39. SLT HOLD Operation
40. System Speed Dial and Personal Speed Dial
41. SMDR Buffers
42. Toll Restriction
43. Voicemail Integration *
44. Wake Up Service *



1. Account Code Display
2. Absent Message Display
3. Call Duration Timer
4. Call Processing Information
5. CLI or Caller ID Information *
6. Called Extension Name Display
7. Conference Information
8. Date and Time Display
9. Dialed Number
10. Call Log Information
11. System Programming
12. Enhanced Station Programming
13. Message Waiting Caller Information
14. Name of Outside Caller
15. Override Identification
16. Soft Keys

* : optional: Extra cost equipment may be required for this feature.



ISDN Connectivity (BRI and PRI)

ISDN has been proven as the way of the future for many office applications and can give real benefits to your business:

Sound quality improved through digital voice transmission.

Multimedia access using voice and data transmission.

ISDN will also provide you with additional benefits:

MSN (Multiple Subscriber Number) or DID (Direct Inward Dial)- allowing incoming callers direct access to extensions, without going through the switchboard.

Caller ID (Calling Line Identification) - allowing you to identify the originating number of incoming calls from the ISDN network.
AOC (Advice of Charge) - at the end of each call, your phone display will show the exact call cost (subject to network provider).

DIA (Direct Internet Access) capability
The GDS Built-in LAN Management Unit, provides a powerful path for accessing the database of the KSU via IP addressing, exchange data and commands from an external CT server, send a Voicemail to your Mailbox to fulfill the UMS (Unified Messaging) requirement. Although the GDS has a high speed (56K maximum) COM port to communicate with external devices, this LAN interface (10/100Base T - dual/fast Ethernet) is dedicated for the higher speed required in some advanced features, such as Voice Messaging and Image transfer.
This DIA capability also enhances customer service. The service center can handle inquiries or requests faster, more efficiently, and more cost-effectively

Built-in Auto Attendant and Voicemail
Auto Attendant and Voicemail are practical commodities for all modern communication systems. But external devices can give slow response times for handling of incoming calls. The GDS built-in Auto Attendant and Voicemail knows the status of all stations without the checking procedure required by external devices, that is why the GDS can react quickly to serve your customers more efficiently. Being built into the KSU, it can send voice messages to any mailbox and can be used for automatic backup purposes.

Caller ID for traditional Single line stations
CLI (Calling Line Identification) capability is a common requirement for most customers, viewing the CLI through the LCD display on the Keyphone is a good feature, but the CLI information can also be received by the CLI standard phone at the SLT (Single Line Telephone) interface. The GDS not only transfers the external CLI but also shows you which extension is calling you during intercom calls.

Message Lamp on Single Line stations
The GDS can generate industry standard message waiting signals to light the message lamp on single line telephones, ideal for the hospitality industry or for voice messaging applications using inexpensive analog type telephones.

Power failure protection
In the event of a power supply failure, the GDS system will continue normal operation for an hour or more running on standard batteries. Without batteries, or when the batteries are exhausted, the system, by configuration, will automatically route calls to single line telephones, so that communications can continue. When the power is restored, the system will revert to its normal connections.

Paging, Music On Hold, Background Music
The GDS allows all types of extensions to access a variety of paging types. Internal paging through the speaker of Keyphones and Access Control Phones. External paging through an external PA system. MOH (Music on Hold) to allow outside callers to listen to music when put on “Hold”. The advanced built-in Voicemail Unit can hold recordings of desired music or messages for different groups of outside lines. BGM (Back Ground Music) is a benefit feature for an employee to listen to music when a Keyphone is idle.

Access Control Phone
The ACP (Access Control Phone) provides an audio path to extensions or external lines, RFID detector for proximity card, relay to open the door or activate a siren and a sensor to detect alarm status. It has many different combinations, such as a door phone at front or back door, normal wall mount phone with handsfree answer back, two-way speaker, security control panel and access control device.

GDS Applications:
Multi-national Organization
VPN on VoIP - One number for all members world wide within the organization.

Offering CID, Message Lamp to the room. ACP for VIP rooms or floor control. CT Star software for the operator to check guest information, room status, leave messages. ACP as a door phone for guests to answer the door without opening the door; large LED display for showing status of DND or “Clean the room” outside the door. An ACP can also be used as a keyless entry system and/or door open alarm.

Clinic or Hospital
ACP works as a two-way speaker for nurse and patient, patient monitoring, doctor’s wall mount phone to auto answer the call without touching any buttons.


Maximum Ports 40 64 80 160 240 320 400 480 560 640
Cabinets 1 1 1 2 3 4 5 6 7 8
Extensions 32 48 80 160 240 320 400 480 560 640
Outside Lines 32 32 54 108 162 216 255 255 255 255
Outside Slots 2 4 5 10 15 20 25 30 35 40
PSTN Lines 16 16 40 80 120 160 200 240 255 255
ISDN BRI 6 6 6 12 18 24 30 36 42 48
ISDN PRI 1 1 1 2 3 4 5 6 7 8
T1 or E1 1 1 1 2 3 4 5 6 7 8
VoIp Slots 2 2 5 10 15 20 25 30 35 40
Keyphones 32 40 80 160 240 320 400 480 560 640
SLTs 32 40 80 160 240 320 400 480 560 640
ACPs 32 10 80 160 240 320 400 480 560 640
Voice Service Slots 1 1 2 4 5 7 9 11 13 15

Note :

1.Above capacity shown as the maximum figure, due to the limitation of available slots, the exact capacity will be dependant on how many slots are available for each interface.

2.Extensions means the maximum number of extensions.

3.Outside Lines means the maximum number of outside lines, that is the combination of E1 or T1 plus ISDN(BRI,PRI), PSTN Lines.

4.Outside Slots means the available slots for PSTN, ISDN, T1/E1, VoIP.

5.One ISDN BRI has 2 outside lines.

6.One ISDN PRI has 30 outside lines.

7.One T1 has 24 outside lines.

8.One E1 has 30 outside lines.

9.One VoIP Card has 3 channels.

10.One Voice Mail Slot has 4 or 6 channels.