Turnkey Callback Solution for PBX
The Callback system from ETV is a turnkey PBX add-on system for cutting back transnational GSM roaming charges and reducing company phone costs. It is ideal for corporate business, handling from 4 to 30 simultaneous calls per system.
Maintaining existing telephony infrastructure, this Call Back server integrates with the phone system as is, and boosts the PABX or IP-PBX with callback functionalities via multiple callback methods.

Available Callback Methods/Triggering:
DDI/DID trigger callback
CLI callback
SMS callback
Web-based (internet) callback
Call-Through

Pre-Defined DID/DDI Trigger Call-Back
Users call a pre-allocated corporate telephone number, often called a DDI (direct dial in) or DID (direct inward dial) number, and then receive a callback call on their registered callback number. Once receiving the callback call, users can make unlimited consecutive outbound calls by keying double pound key (#, #).
CLI Call-Back
The CLI Callback service (a.k.a. ANI callback) is used in countries where CLI (calling line identification or caller ID) is available through the PTT. Users dial the/a DDI number to trigger the callback to the registered user, and can then make unlimited consecutive outbound calls by keying double pound key (#, #).
SMS Call-Back
Users can also initiate a Callback by sending an SMS message to the designated number which includes the destination number. After receiving the callback call, users can make unlimited consecutive outbound calls by keying double pound key (#, #).
Web-based (internet) Call-Back
With this web-based visual Callback-Dialer, users dial the destination number and then receive a callback call on their registered callback number.
Call-Through
CallThrough is a corporate callback trigger which enables authorized corporate users outside the office to call a pre-allocated telephone (DDI) number for obtaining a secondary dial-tone from within the organization's PBX/PABX to make calls using the low VPN tariffs.

Major Advantages:
Reducing GSM roaming costs
Cost savings on GSM calls
In-house, on-site equipment
Maximize the VPN’s low GSM rates
Fast return on investment (ROI)
4 to 30 simultaneous calls
Support GSM, VoIP and PSTN
Compatible with all ISDN PBXs
In-line connectivity (3-leg topology) – between the PBX and the PSTN
Visual Callback-Dialer for desktop control
Individual management of Callback activity
Remote web-based management and control
24 months warranty
Key Benefits for Corporate Business:
Alternative, Low-Cost Call Routing for PBX
ETV CallBack System solution creates for corporate businesses an alternative, low-cost channel to dial/call remotely through the PBX to long distance destinations from anywhere in the world; making the most of office-based international / long distance call savings plans.
Reducing GSM Roaming Charges & Local Call Costs
Callback is designed for users who are making calls from any international or interstate destination back to their home country when using a GSM mobile phone. The Call-Back System is a business-class PBX add-on system for reducing overall company telephony costs. Its Callback and Callthrough features provide a way to reduce GSM roaming charges and local interconnection rates by providing cheaper call routing alternatives using the PSTN, GSM and VoIP networks.
VoIP Connectivity
Optional VoIP connection for enabling to connect both user and target destination numbers over VoIP networks for reducing call costs.
System Features:
Capacity:
- Systems from 4 to 30 GSM channels (and/or CDMA)
- 2 x E1-PRI or 3 x T1-PRI
- 1 SIM or MultiSIM; 4 SIM cards per port
Configuration:
- Bi-directional calls (Inbound and Outbound calls)
- In-line connectivity (3-leg topology)
- LCR functionality
- SMS support (optional)
- Integrated antenna combiner
PBX Compatibility: with leading manufacturers worldwide
Chassis:
- Available 3U x 19" or 6U x 19" size
- Rack-mountable design
- Redundant power supply (optional)
Management & Control:
- Remote web-based
- Local serial port
High voice quality
Fast and easy installation
Given the systems' flexibility, modularity and scalability, this innovative stand-alone Callback System can be pre-configured to meet precise customer requirements so companies can easily expand the cost-effective systems to meet their evolving telephony needs over time.

Available: 4 to 16 ports, 8 to 30 ports, and 30 (+2) ports.

more info please see our web : www.e1t1voip.com
contact us : mail / msn - info@e1t1voip.com

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