i2022 ISDN Teleset
NOTE: It is not necessary to edit the Call Record Directory Number if the Dial option Feature is used.
When the number is transferred to the Directory, you have an opportunity to edit the name.
Use the ∗ key to enter an asterisk or a hyphen. Use the # key to enter a pound sign or apostrophe. Use the DN softkey to toggle between the Name and the Telephone number.
Use the - key for a space.
ADVANCED FEATURES
ANALOG PORT
The i2022 is equipped with two analog RJ11 jacks. The RJ11 analog jacks are located on the bottom of the i2022. The jacks are connected in parallel to each other. This means you have one Analog Port with the ability to connect two analog devices to the analog port.
The analog port allows the connecting of an analog modem or Group 3 facsimile machine, either to a second SPID or to the first Call Appearance on the i2022.
An ISDN Basic Rate Line (2B+D) has 2 B-Channels. These B-Channels can be used for talking or sending data. Each SPID will use a B-Channel when the service provisioned on that SPID is in use. For example, if
SPID 1 is provisioned for Voice only, one of the B-Channels will be in use whenever the Teleset is off-hook. But at the same time, SPID 1 does not tie up the B-Channel when the Teleset is on-hook.
If the i2022 is installed on a Multi-Point circuit (Passive Bus) with another device, there may be a B-Channel Contention problem. In figure 12, there are two i2022 Teleset’s on a Multi-Point circuit. One i2022 is equipped as Voice only. The second i2022 is equipped for Voice with a simultaneous Analog Port. This means there are a total of three SPIDs assigned on this circuit. If both i2022s are off hook at the same time, both B-Channels will be in use. This means that if the Analog Port were to go off-hook there would be no B-Channel available to the Analog Port. This is because there are three SPIDs contending for the two B-Channels. The i2022 will return a Call Blocking Tone to the Analog Port.
Figure 13: Analog Port
NOTE: When using the Analog Port, care must be taken to avoid contending for B-Channels. See the section on Calls Blocked in the troubleshooting section.
Analog Port Sharing the Teleset’s SPID – Configuring
When the Analog POTS Port is configured to share the same SPID as the i2022, the Analog Port will be in contention with the i2022 for use of the B Channel. This means, if the Analog Port is off-hook, the i2022 will return Congestion Tone if it is taken off-hook. For example, the Analog Port is off-hook receiving a fax. A call rings in on Call Appearance 2. If the handset of the i2022 is lifted, a Circuit Congestion Tone will be heard and the incoming call will be lost.
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