Single, Dual and Quadruple Hi-Impedance E1/T1/J1 Digital Tap
Tap digital lines with no additional hardware for passive logging applications.

Multiple Call State Monitoring (CAS/ISDN/SS7)
Support the CAS, SS7(TUP, ISUP) and ISDN signaling protocols and report the call states and calls parameters via comprehensible API events.

True Dual Span Capabilities
Customizable RJ-45/BNC/RJ-11 interfaces can record inbound/outbound sides of a conversation, and support inbound and outbound call recording.

Support Direct Windows WAV Format
Data is stored in WINDOWS WAV format directly, and can be played out by sound card with no format conversion.

High Density Passive Tap Capabilities
Operating between a central office and PBXs, the DTP's high impedance receivers record both sides of a call without interrupting service. Each board can process up to 120 ports, with a maximum of 960 ports per host.

Voice-Processing Capability
A large selection of voice CODECs for developers, including G729, GSM, G711 A-law, µ-law, Linear PCM, IMA-ADPCM, MP3, and support VOX format.

Tap Environment
With single or dual E1/T1/J1 trunk boards, DTP adapts to high density applications. The Synway's in-house unified API supports a total of 960 ports per system. In any digital environment, DTP can work well as tapping point between office and PBX, office and phones, PBX and phones and any other digital audio signals.

Worldwide Interface Digital Support
DTP supports passive call recording on E1/T1/J1 networks features such as programmable voltage thresholds, voltage detection, and ring detection are managed through Synway's in-house unified API, so the products can easily adapt or be quickly customized to variations in most digital systems worldwide.

Security for User Software
The built-in authorized code identification circuit is included to provide an exclusive authorization code for protecting users' software security.