/ Hybrid Voice Interface (LCP)§
Notices§
- The feature is a part of the Linked Capacity Plus functionality.
- The feature is a part of the SmartPTT Enterprise only.
About§
SmartPTT introduces voice and radio commands support in Capacity Plus Multisite (Linked) using the hybrid voice interface. The term “hybrid” here refers to the following topology aspects:
- Ability to receive voice and radio commands over IP interface to the LCP main repeater (wireline interface).
- Ability to transmit voice and radio commands over donor radios on per-site basis (wireless interface).
Within that hybrid voice interface, donor radios are referred to as “TX radios”.
High-level diagram is available below:
Ability to transmit voice and radio commands over IP interface is available in SmartPTT PLUS. For other questions, please contact your SmartPTT sales representative.
For technical details, see “How It Works” below.
How It Works?
The interface is based on the voice and signaling being identical while transmits by repeaters and radios in LCP mode and conventional mode.
You can prove it in the following way:
- Set up digital channels in your radio identically to channels you add in your LCP channel pool.
- Enable channel scanning in your radio.
- Set up RX lists in your radio identically to your LCP configuration.
At this, if you initiate a voice call in LCP, in a time being your scanning radio will detect a call and will receive it for you. If you transmit in LCP You can prove it by scanning digital channels which settings are the same as for channels in LCP pools. Once radio detects a voice transmission intended for the group it listens to or to ID which that radio has, the radio will receive that transmission.s
For that system being operable, SmartPTT creates and stores relationships table between the following:
- Repeater Radio ID (peer ID) and time slot,
- Digital channel zone and position.
Features§
Features below specific to voice, radio commands, and system health. Other features are irrelevant to hybrid voice interface.
Table Conventions
- Double check box () means “fully supported”.
- Single check box () means “supported with limitations”.
- Cross () means “not supported”.
| Features | Availability |
|---|---|
| Group calls | |
| Individual calls1 | |
| Local area calls2 | |
| Wide area calls | |
| Encrypted calls | |
| PTT ID1 | |
| Voice recording3 | |
| Emergency Calls | |
| Emergency Alarms4 | |
| Patching, to and from LCP | |
| Inter-Server Patching | |
| Phone Interconnect | |
| Ambience Listening | |
| Call Alert4 | |
| Radio Check | |
| Radio Disable | |
| Radio Enable | |
| TX radio system monitoring |
Benefits§
- Deploy cost-effective voice recording solutions powered by the SmartPTT in LCP systems. Remove donor radios if unnecessary.
- Deploy competitive voice dispatch solutions based on SmartPTT in any Capacity Plus systems.
- Use control stations in a cost-effective way. You do not need “one group one station” convention anymore. Just install them on the sites where you need them. Incoming calls will be automatically detected, and replies processed properly.
- Benefit from the simple per-interface licensing of your voice-capable solution.
Requirements§
- Repeaters require NAI voice licenses. If data needs too, NAI data license is required too.
- Ensure your SmartPTT subscription is current to install this release.
- SmartPTT must have the active “Wireline Voice Receive (LCP)” license key. For the related part number, please contact your SmartPTT sales representative.
Prerequisites§
Available in the dedicated article.
Changelog§
9.15.100§
- Hybrid voice interface introduced in SmartPTT Enterprise.
9.7§
- Two-way wireless voice interface (often referred to as “hybrid”) is discontinued in SmartPTT Enterprise. Only data interface is available.
8.4§
- Two-way wireless voice interface (often referred to as “hybrid”) introduced/ Implies the use of control stations for two-way voice and radio commands.