CHAPTER28 Configuring Supplementary Services
Mediant 1000 Gateway & E-SBC | User's Manual
5. Open the Trunk Settings page (see Configuring Trunk Settings), and then make sure that you
configure the BRI ports with the following settings:
● 'Protocol Type': BRI EURO ISDN
● 'ISDN Termination Side': Network Side
● 'BRI Layer2 Mode': Point to Multipoint
Enabling Call Waiting
The Call Waiting feature enables busy FXS endpoints connected to the device to accept an
additional (second) call. If an incoming IP call is designated to a busy port, the called FXS endpoint
hears a call waiting tone (several configurable short beeps) and can view the Caller ID of the
incoming call (for Bellcore and ETSI Caller IDs). The calling party hears a call waiting ringback
tone. The called party can accept the new call using hook-flash and can toggle between the two
calls. To indicate call waiting, the device sends a SIP 182 (Call Queued) response. The device
identifies call waiting when a 182 (Call Queued) response is received.
● The feature is applicable only to FXS and FXO interfaces. FXS interfaces support
the calling and called sides. FXO interfaces support only the calling side.
● You can enable call waiting per port in the Call Waiting table (see Configuring Call
Waiting). For ports that are not configured in the table, call waiting is according to
the global parameter, as described in the procedure below.
➢ To enable and configure call waiting:
1. Open the Supplementary Services Settings page (Setup menu > Signaling & Media tab >
Gateway folder > DTMF & Supplementary > Supplementary Services Settings).
2. From the 'Enable Call Waiting' drop-down list (EnableCallWaiting), select Enable.
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