Limits and Specifications
Supported OS:
2N® IP Audio Manager
- Linux Debian 7.7.0 32/64 bit
- WIN 7 32/64 bit
- WIN Server 2008 R2
- WIN Server 2012 R2
- WIN 8 32/64 bit
- WIN 8.1 32/64 bit
- WIN 10 32/64 bit
2N® IP Audio Console, 2N® IP Audio Virtual Sound Card
- WIN VISTA 32/64 bit
- WIN 7 32/64 bit
- WIN 8 32/64 bit
- WIN 8.1 32/64 bit
- WIN 10 32/64 bit
Requirements
- In order to perform correctly, all components are required to use exactly the same software version – 2N® IP Audio Manager, Control Panel, Virtual Sound Card and Console.
- Windows Media Player 11
- Microsoft Visual C + + 2008 Redistributable Package (x86) – installation is required to avoid problems with stability
- Microsoft Visual C + + 2013 Redistributable Package (x86) – installation is required to avoid problems with stability
- Microsoft. NET Framework 4 redistributable package
- Desktop Experience feature is required on Windows Server products (part of User Interface and Infrastructure in MS Windows Server 2012)
- Windows Firewall service running during installation, otherwise the 2N IP Audio System rules have to be added manually
VoIP
Without Registration: Counterparty calls on the IP address of the predefined 2N® IP Audio Manager and port for the VoIP trunk (5061, e.g.).
With Registration: 2N® IP Audio Manager is only the client, the 2N® IP Audio Manager gets registered with the PBX. It cannot be switched to the Registrar = SIP Proxy mode (no phones can register with it).
Communication Protocols
Way of communication | Port | Protocol |
|---|---|---|
Control Panel >> IP Audio Manager | 6990 | proprietary |
Console >> IP Audio Manager | 6992 | proprietary |
Virtual Sound Card >> IP Audio Manager | 6992 | proprietary |
IP Audio Manager >> Net Audio device (passive mode) | 6998 | proprietary |
Net Audio device >> IP Audio Manager | 6999 | proprietary |
| IP Audio Manager >> RTP destination | adjustable | RTP |
| PC >> Net Audio device | 23 | Telnet |
SYSLOG
The 2N® IP Audio Manager allows you to send logs to the syslog server. The 2N® IP Audio Manager was tested with rsyslog server and Watcher. For more details on settings and use refer to the Advanced configuration → Control Panel Manual → Administrator menu.
TELNET
When 2N® Net Audio Decoder gets connected to the server, Telnet is disabled by default and reactivated automatically after disconnection. To enable Telnet while 2N® Net Audio Decoder or 2N® Net Speaker is connected to the server, allow this on the Destinations and Zones tab in the Control Panel for the particular device.
Minimum Transfer Rates
Audio transfer between the IP Audio Manager and 2N® Net Audio Decoder or 2N® Net Speaker units:
| Audio | Option | IP Audio Manager – Net Audio Decoder transfer | Net Audio Decoder – IP Audio Manager transfer |
|---|---|---|---|
unicast | 32 kbps mono | 100 kbps/unit | 60 kbps/unit |
| 64 kbps mono | 135 kbps/unit | 60 kbps/unit | |
| 128 kbps mon/ster | 190 kbps/unit | 60 kbps/unit | |
| multicast | 32 kbps mono | 70 kbps/group | – |
| 64 kbps mono | 100 kbps/group | – | |
| 128 kbps mon/ster | 145 kbps/group | – |
Caution
- Up to 2,500 devices can be connected to 2N® IP Audio Manager.
Communication between SW or audio components:
| Communication | Type of data | Transfer rate |
|---|---|---|
| Control Panel ↔ IP Audio Manager | signalling | 20 kbps |
| Virtual Sound Card → IP Audio Manager | audio + signalling | 1650 kbps |
| Console → IP Audio Manager | audio + signalling | 1650 kbps |
| Net Mic → IP Audio Manager | audio + signalling | 1650 kbps |
| Net Audio Decoder → IP Audio Manager | audio + signalling | 1650 kbps |
| IP Audio Manager → Expander | audio + signalling | 1600 kbps/stream |
Audio transfer from 2N® IP Audio Manager to RTP destinations:
| Option | IP Audio Manager → Net Audio device |
| G.711 – uLaw | 85 kbps |
| G.711 – uLaw | 85 kbps |
| Linear PCM 16bit 44.1kHz Stereo | 1500 kbps |
| Linear PCM 16bit 44.1kHz Mono | 800 kbps |
Test Results
| HW – CPU, Chipset | Intel Atom Z530 | Intel Core i5 | Intel XEON E5645 |
|---|---|---|---|
Number of different streams (Win 7, Win 8) | 6 | 20 | – |
Number of different streams (Win Servers) | – | – | 100 |
| Net Audio devices (Win 7, Win 8) | 40 | 300 | – |
| Net Audio devices (Win Servers) | – | – | 1000 |
Number of users (all OS) | 1000 | 1000 | 10000 |
Number of SIP trunks (all OS) | 10 | 100 | 100 |
| Number of concurrent calls (all OS) | 2 | 10 | 100 |
Audio transfer from Net Mic:
| SIP MIC → IP Audio Manager | ||
Sampling frequency (Hz) | Channel count | |
| MONO | STEREO | |
| 8000 | 239 kbps | 367 kbps |
| 11025 | 288 kbps | 463 kbps |
| 12000 | 303 kbps | 495 kbps |
| 16000 | 367 kbps | 624 kbps |
| 22050 | 465 kbps | 817 kbps |
| 24000 | 495 kbps | 880 kbps |
| 32000 | 624 kbps | 1137 kbps |
| 44100 | 819 kbps | 1586 kbps |
48000 | 880 kbps | 1729 kbps |