Cards

After physical configuration and installation in the machine you have to configure IPBrick. To make this step you have to know how the card was physically configured, i.e., each port configuration. After the physical installation of the hardware, you can configure cards in the IPBrick web interface in the menu:

Advanced Configurations - Telephony - Cards

To insert click on Insert, and then indicate (as shown on Figure 7.57):

Card type: Can be analogic, ISDN BRI or ISDN PRI;
Port count: Number of ports;
Port configuration: Each port can be configured to connect to the pre-setted interfaces: PBX or PSTN. For analogic and ISDN PRI the settings are automatically configured like this:
```
    Analogic: Connecting to a PBX, so the card port will act as fxs
              Connecting to PSTN, so the card port will act as fxo
    ISDN PRI: Connecting to a PBX, so the card port will act as NET
              Connecting to PSTN, so the card port will act as CPE
```
For ISDN BRI the administrator must fill the settings:
- NT PtP (Point to Point);
- NT PtMP (Point to Multi-Point);
- TE PtP (Point to Point);
- TE PtMP (Point to Multi-Point).

The actual status of each port is presented as shown on Figure 7.58. Detailed explanation:

Green: The layer 1 (physical) and layer 2 (signalling) are UP. So the port is ready;
Yellow: The layer 1 is UP and layer 2 is DOWN. It means a sync problem, so probably you need to check the tx or rx settings (ISDN PRI) or the card jumpers (ISDN BRI);
Red: The layer 1 and layer 2 are DOWN. It means that we have a connection problem (bad cable or no cable) or the port is damaged. Note that for a PSTN BRI - PTMP mode, usually when no calls are active, the standby status can be allways red;
Red blinking: Hardware problem. You need to verify the card integrity / jumpers configuration. It's very rare to happen.

If no card is present or if it's not detected, the message will be NA.

**Figure 7.57:** Telephony - Cards - Insert

For each card inserted there are three options: Back, Modify and Delete (Figure 7.58).

**Figure 7.58:** Telephony - Card definitions

If the port is connected to the landline (PSTN) you need to configure the setting as TE. If the port is connected to the PBX gateway you have to configure the PBX port and configure the setting as NT. A ISDN FAX usually behaves like a PBX requiring the port configuration as FAX (to show this option requires a FAX interface configuration) and configure the setting as NT. If there is a GSM interface configured in one of the ports you have to choose it on the list and configure the setting as TE. To configure a ISDN PRI you have to indicate if the line uses R2 protocol (protocol used for example in Brazil) and if the CRC4 is active on the line. The PtP or PtMP depends of the telephone operator line type.

After the configuration, we can see a list with the configured cards, as visible in Figure 7.59.

**Figure 7.59:** Telephony - Cards list

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