ISDN Wizard - ISDN Settings page allows you to choose the interface type and the connection type of the selected trunk(s).
The Interface Type drop down list allows you to select between the User and the Network interfaces. If the ISDN port of the Quadro is connected to the CO (Central Office) then User interface type should be selected. If the ISDN port of the Quadro is connected to the PBX then Network interface type should be selected (in that case Quadro acts as a CO for that PBX).
The Connection Type manipulation radio button group allows you to choose the connection type for the selected trunk(s):
PTP (Point to Point)
In case of connection to the CO (User interface type is selected on Quadro) choose this option if only Quadro is connected to the ISDN trunk from CO (no other ISDN devices are connected to the particular ISDN trunk from CO besides the Quadro).
In case of connection to the PBX (Network interface type is selected on Quadro) choose this option if only the PBX is connected to the ISDN trunk from the Quadro (no other ISDN devices are connected to the particular ISDN trunk from the Quadro).
In both cases, with this selection, Quadro sets the TEI to manually mode assigning the default value of 0. If needed, that value can be changed later in the Advanced Settings page of ISDN Wizard.
PTMP (Point to Multi Point)
In case of connection to the CO (User interface type is selected on the Quadro) choose this option if there can be other devices connected to the same ISDN trunk from CO except the Quadro.
In case of connection to PBX (Network interface type is selected on the Quadro) choose this option if there can be other devices connected to the same ISDN trunk from Quadro except for the PBX.
In both cases, with this selection Quadro sets the TEI to automatic mode.
Note: Consult with your CO operator or network administrator before configuring the ISDN connection type.
The next page in the ISDN Wizard is ISDN Wizard - MSN Settings. The MSN Settings page is used to turn on the MSN configuration. It is recommended to enable the MSN when there are multiple ISDN devices connected to the same ISDN bus. If the MSN is enabled on this page, the next page will require the MSN table configuration.
ISDN Wizard - Routing Settings page content is variable depending on the connection type selected on the previous page:
For MSN service enabled, this page is used to assign MSN numbers to the certain destinations on the Quadro. The MSN number can be assigned to the Quadro's extensions, to the Auto Attendant, or to the routing agent. The destination selected from this page will ring upon incoming call to the corresponding MSN number comes in. The fields in the MSN Number column require the MSN numbers allocated to the Quadro.
Note: At least one MSN number should be defined in this list. The system displays an error message if the same MSN number is used twice in the drop down lists on this page.
The Route Incoming call to drop-down lists are used to select the destination where the incoming call addressed to the certain MSN number will be routed. Choosing the Routing with inbound destination number selection will automatically use the initially dialed number to connect the destination without any additional dialing. If MSN is disabled on the ISDN Wizard - MSN Settings page, the ISDN Wizard - Routing Settings page contains only one Route Incoming Call to drop-down list.
Selecting the Use Default outgoing Caller ID allows you to overwrite the source caller information with the one specified in the Default outgoing Caller ID field when placing outgoing calls toward the CO. The Default outgoing Caller ID field requires the caller ID for the outgoing calls from the Quadro through the ISDN trunk. That number should be registered at the CO and can be one of the MSNs provided by the CO. If this checkbox is enabled but no value is defined in the Default outgoing Caller ID, empty caller information will be sent to the CO. If this checkbox is disabled, the source caller information will be forwarded to the CO.
Select the Advanced Settings checkbox if you wish to adjust trunk's L2 and L3 Settings manually, otherwise leave this checkbox unselected to use the system default values.
ISDN Wizard - L2&L3 Settings page contains following components:
Two groups of timers need to be provided. These settings are adjusted according to the Service Provider requirements. ISDN L2 Timers:
The Excessive Ack. Delay T200 text field configures the period in milliseconds (digit values from 500 to 9999) between transmitted signaling packet and its acknowledgement received.
The Idle Timer T203 text field configures the period in milliseconds (digit values from 1000 to 99999) for ISDN client idle timeout.
ISDN L3 Timers:
The T302 Timer text field requires the value for the T302 timer in milliseconds (digit values from 0 to 15000). It indicates that the time frame system is waiting for a digit to be dialed and when timer expires, it initiates the call.
The T309 Timer text field requires the value for the T309 timer in milliseconds (digit values from 0 to 90000). It is responsible for call steadiness during link disconnection within the period equal to this timer value. If the value in this field is 0, T309 timer will be disabled.
The T310 Timer text field requires the value for the T310 timer in milliseconds (digit values from 1000 to 120000). It is responsible for the outgoing call steadiness when CALL PROCEEDING is already received from the destination but call confirmation (ALERT, CONNECT, DISC or PROGRESS) is not yet arrived.
The Alert Guard Timeout requires the value for the Alert Guard Timer in milliseconds (numeric values from 0 to 500) between CALL PROC and ALERT messages. Alert Guard Timer it is used when Quadro is connected to a slow ISDN-PBX. Recommended values are:
- fast connection (0ms);
- normal (150ms), default;
- slow ISDN-PBX (350ms);
- very slow ISDN-PBX (500ms).
The Switch Type is another configuration parameter that depends on the Service Provider.
The Coding Type drop down list allows you to select between a-law and mu-law coding types.
The Passive Mode checkbox is used to leave the ISDN Layer1 connection in the Slave mode. When this checkbox is selected, Layer1 remains idle when calls are not available. When this checkbox is not selected, Quadro keeps its Layer1 always active. This checkbox enables the Enable TEI Remove Procedure and Permanent TEI Value checkboxes. With the Enable TEI Remove Procedure checkbox is selected, the trunk will lose the assigned TEI when entering into passive mode on the Layer 2. With the Permanent TEI Value checkbox is selected, the trunk will keep the assigned TEI when entering into passive mode on the Layer 2 or when Quadro detected ISDN link DOWN signal from carrier. These checkboxes are present only for connection types different from PTP (Point to Point) selected on the first page of ISDN Wizard. In case if PTP (Point to Point) connection type is selected on the first page of the ISDN Wizard, these two checkboxes are replaced with a TEI Address text field that requires the channel number (digit values from 0 to 63) for connection establishment between the CO and the ISDN client.
Note: The Passive Mode, Enable TEI Remove Procedure and Permanent TEI Value checkboxes are present only for connection types different from PTP (Point to Point) selected on the first page of ISDN Wizard. If PTP (Point to Point) connection type is selected on the first page of the ISDN Wizard, these three checkboxes are replaced with a TEI Address text field that requires the channel number (digit values from 0 to 63) for connection establishment between the CO and the ISDN client.
The Channel Selection drop down list is used to select between the Preferred and Exclusive B channel selection methods. For Preferred channel selection, the CO answers to the call request by the first available timeslot. With the Exclusive channel selection, the CO should feedback only by the timeslot asked by the call request.
The Bearer Establishment Procedure drop down list allows to select the session initiation method on the B channels. One of the following options can be selected for transmission path completion prior to receipt of a call acceptance indication:
on channel negotiation at the destination interface;
on progress indication with in-band information;
on call acceptance.
The Calling Party Type of Number drop down list allows you to select the type identifying the origin of call.
The Called Party Type of Number drop down list allows you to select the type identifying the subaddress of the called party of the call.
The Called Party Numbering Plan and Calling Party Numbering Plan drop down lists correspondingly indicate the numbering plan of the called party's and calling party's number.
The Incoming Called Digits Size text field indicates the number of received digits (in a range from 0 to 255) required to establish a call. When this field has a "0" value, the system uses either the timeout defined in the T302 field or the
Sending Complete Information element messages to establish a call. Independent on the value in this field, Sending Complete Information element and the pound sign always results in call establishment.
When Generate Progress Tone to PSTN/PBX checkbox is selected, Quadro generates ring tones to callers during ISDN call dialing. This feature is mainly applicable to 2-stage dialing mode.
The Generate Progress tone on IP checkbox selection will generate the progress tone to IP.
The Enable CLIR Service checkbox selection enables the Calling Line Identification Restriction (CLIR) service which displays the incoming caller ID only if Presentation Indication is allowed on the remote side. Otherwise, if CLIR service is disabled, caller ID will be unconditionally displayed.
When the Alternative Disconnection Mode checkbox is not selected, Quadro will disconnect the call as soon as the disconnect message has been received from
the peer. When the checkbox is selected, Quadro's user may hear a busy tone when peer has been disconnected.
P-Asserted-Identity
The Disable P-Asserted-Identity radio button disables the P-Asserted-Identity feature for both incoming and outgoing calls.
The Override CLID with P-Asserted-Identity radio button selection enables the SIP P-Asserted-Identity support. For the calls from SIP to ISDN if the Invite SIP
message contains a P-Asserted-Identity or a P-Preferred-Identity or a Remote-Party-ID, then the CallerID on ISDN is sent with the original Caller ID which comes from the
identity field. SIP user agent should check for the existence of the P-Asserted-Identity, then the P-Preferred-Identity, then the Remote-Party-ID to fill the identity field.
For the calls from ISDN to SIP with restricted Caller ID, the SIP Invite message contains P-Asserted-Identity field with the value from the Caller ID on ISDN. The SIP From
field contains anonymous.
The Use Redirecting Number Info Element with P-Asserted-Identity radio button selection enables full support of the SIP P-Asserted-Identity. For the calls from
SIP to ISDN, if the SIP Invite message contains a P-Asserted-Identity or a P-Preferred-Identity or a Remote-Party-ID, then the CallerID on ISDN contains the number
from the user name field and the Redirecting Number IE contains the original number from the identity field. SIP user agent should check for the existence of the
P-Asserted-Identity, then the P-Preferred-Identity, then the Remote-Party-ID to fill the identity field.
For the calls from ISDN to SIP with Caller ID, the SIP Invite message contains P-Asserted-Identity field with the original number value from the Redirecting Number IE
on ISDN. The SIP From field contains the value from the user name.
When the Send Calling Party Subaddress checkbox is selected, Quadro will send the
extension number as subaddress and the value defined in the Default outgoing Caller ID
field as caller ID on the outgoing call. When this checkbox is disabled, no subaddress information
will be sent and the caller ID will be defined according to the selection of the Use Default
Outgoing Caller ID checkbox (see previous page of the ISDN Wizard). Caller ID information,
along with the Subaddress, can be displayed on the phone display depending on the phone and PBX
settings and capabilities.
When the Ignore Empty Channel Identification in CALL PROCEEDING Msg. option is selected, Quadro will ignore the empty ISDN L3 Channel Identification information element in CALL PROCEEDING message and will not response with STATUS message.
When this checkbox is disabled, Quadro will response with STATUS message on empty Channel Identification information element.
The B1 Channel and B2 Channel checkboxes enable/disable the timeslots for voice transfer.
Disabling the timeslots will prevent both incoming and outgoing calls.