Options > Card settings

The Card Settings page can be reached from the Options menu by administrators. This page is not available in VoIP-only systems.

This page lists the recording cards that are inserted in the Apresa. These cards provide recording of digital TDM calls, as well as for analog telephony.

Column	Description
Serial number	The serial number of the recording card (not of Apresa)
Present	A green check mark is shown if the card is present. A red cross means that the card is not present or unusable.
Card type	The exact card type of the recording card.
Card type	Whether it is a Digital TDM or Analog recording card.
Channels	The number of channels on the card that are usable for recording. Between brackets the first and last line number is displayed. These line numbers are used in the rest of the Apresa system.
PBX manufacturer	This applies to digital TDM cards only. The PBX manufacturer and model must be set to the PBX model that is used, for each card separately. After you have edited this property, the recording component must be restarted.
PBX model

Names can be assigned to line numbers of the recording cards. This is done in the Contact List. These names will be used to populate the "Name of local" column in the main call listing.

To edit the settings of a recording card, select the card, and click the Edit button.

To edit per channel settings of a recording card, click instead the Edit (per channel) button.

Settings for digital TDM

Select the PBX Manufacturer and PBX Model that most closely matches your PBX, if not instructed otherwise by Vidicode. Apresa uses knowledge of the protocol used by the PBX to detect the start and end of the calls.

Event codes: This allows for custom event codes to be used for detecting ringing events, and call start/stop events.

Start condition: This is an option to switch on a special customization, for detecting the start/end of a call.

Audio detection: If this option is enabled, in addition to the PBX-specific protocol events, also the audio level is monitored to detect the start and end of a call. Normally, this option should not be enabled.

Sensitivity: Lower this value if the Apresa starts a recording when no call is busy. If calls are split in multiple parts, it might help to increase this value, or to increase the silence time-out.

Silence time-out: If the line is silent (below the audio level threshold), for this amount of time, then the recording is stopped, except when there is another indication that a call is active.

DTMF: If this option is enabled, the audio is analysed for DTMF tones, and these will be interpreted as dial codes. It makes no distinction between the local and remote side. For some PBX, pressed digits keys are recognized without DTMF analysis, and in that case, this DTMF option should be disabled, otherwise double digits will be detected.

Store metadata of missed calls: Stores entries in the database for unanswered calls (only applicable to: ISDN BRI)

Amplification: The local and remote side can be amplified separately with a maximum of 6 x 3 dB = 18 dB.

The following settings can be set per channel:

Phone type: For some PBX types, there is support for special type of phones (e.g. system console phones).

Check line status: When enabled, the line status will be checked, and if a problem is found, this will treated as a system error. It checks if the channel is offline (line disconnected / phone unavailable), and if there are signal interpretation errors (this can indicate a signal quality problem).

Recording on demand: If this setting is off, the software will function unmodified as usual. If this setting is switched on, then the calls on the channel are recorded only on request. If a call is recorded only on request, this means it is initially not recorded, but it will be recorded, when the command to start recording is given. Initially, it will be listed in the active call list, but not recorded. Recording can be started from the Apresa Client or with a recognized Dial code (dial code action start and stop).

Check on recording inactivity: Let this channel be monitored for inactivity (See System settings, Alarm).

Recording inactivity (per channel): If there are no recordings on this channel during this specified time duration (inside the specified activity periods in the System settings), it is treated as an error. If this field is left empty, the value from the System settings is used.

Loud voice detection: If enabled, the system will check if the audio level is above the sound level threshold (dB), during a specified duration.

Note: the dB values are not an absolute, but a relative measure. If there is difficulty selecting an appropriate level, it might be helpful to use the Channel status monitor functionality.

If loud talking is detected, the following is done:

•The call is marked with the category 1 (color red). To give this category a name, use System settings, Category.

•An email is sent to the administrator email address with the details of the call (date & time, number, channel, etc.)

Channel status: The channel status monitor displays the detected audio level (but only if loud voice detection is on, and a call is active) for the selected channel.

Settings for analog recording cards

To edit the settings for one specific channel, select the channel, and press Edit. It is also possible to edit the settings of multiple channels at once. To change the settings for all channels at once, click Select All, and then press Edit.

Setting

Description

Start condition

Choose what will trigger the start of a recording.

None: No recordings will be made on this channel.

Off-hook: The recording will start as soon as it detects off-hook (voltage is below the off-hook threshold), and stops when it detects on-hook.

Audio level: The recording will start when it detects the audio level is above the audio level threshold, and stop when it is below the threshold for as long as the silence time-out.

Always: Recording will start at once. Use together with the Split long recordings option.

Off-hook threshold

Voltage level to distinguish between on-hook and off-hook

For example: 28 (Volt)

Sensitivity

This value controls which audio level will cause the recording to start. The value corresponds to the following voltages:

1	750 mV	9	70 mV
2	550 mV	10	50 mV
3	350 mV	11	35 mV
4	300 mV	12	28 mV
5	250 mV	13	20 mV
6	175 mV	14	15 mV
7	100 mV	15	10 mV
8	85 mV	16	8 mV

Silence time-out

If the line is silent (below the audio level threshold), for this amount of time, then the recording is stopped.

Amplification

Apply a constant amplification to the recorded audio. The value must be between -6 and 6. Multiply the value with 3 dB to get the audio amplification that will be applied.

Automatic Gain Control (AGC)

If enabled, audio is amplified automatically.

Recording on demand

If this setting is off, the software will function unmodified as usual. If this setting is switched on, then the calls on the channel are recorded only on request. If a call is recorded only on request, this means it is initially not recorded, but it will be recorded, when the command to start recording is given. Initially, it will be listed in the active call list, but not recorded. Recording can be started from the Apresa Client or with a recognized Dial code (dial code action start and stop).

Check on recording inactivity

Let this channel be monitored for inactivity (See System settings, Alarm)

Recording inactivity (per channel)

If there are no recordings on this channel during this specified time duration (inside the specified activity periods in the System settings), it is treated as an error. If this field is left empty, the value from the System settings is used.

Loud voice detection

If enabled, the system will check if the audio level is above the sound level threshold (dB), during a specified duration.

Note: the dB values are not an absolute, but a relative measure. If there is difficulty selecting an appropriate level, it is probably helpful to use the Channel status monitor functionality.

If loud talking is detected, the following is done:

•The call is marked with the category 1 (color red). To give this category a name, use System settings, Category.

•An email is sent to the administrator email address with the details of the call (date & time, number, channel, etc.)

Split long recordings

If enabled, recordings are split automatically when they are active longer than the specified maximum duration.

Channel status: The channel status monitor displays the detected voltage level. If loud voice detection is on, and a call is active, it also displayed the detected audio level.

Settings for ISDN PRI

Setting	Description
Swap local and remote side of the call	The Local and Remote ID will be swapped. The direction (IN/OUT) will be reversed as well. The same effect could be created by swapping the receive and transmit lines in the ISDN cable.