User guide

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Cisco Media Gateway Manager 5.0 User Guide
OL-5461-02
Chapter 6 Configuring Hardware
How Do I Configure VXSM Cards?
6.7.7.4 Configuring Announcements
In switching mode, VXSM delivers prerecorded announcements in either direction, for example, a
calling party or called party, under the control of the MGC. These announcements are played during a
call setup and after the call is established. The announcement files are available in VXSM memory to be
played out. If the file does not reside in VXSM memory, VXSM uses TFTP to obtain the file from an
external announcement server, caches it, and plays it out.
A media gateway is a network element. It provides an electrical conversion between audio signals carried
on telephone circuits and data packets carried over the Internet or over other packet data networks. To
setup an announcement system, the media gateway plays prerecorded audio files. These files are played
bidirectionally over existing connections, for example, calls, or the audio files are directed toward a
TDM network to a TDM endpoint that is terminated on a media gateway.
To configure the announcement control parameters:
Step 1 From the Domain Explorer window, choose Configuration > MGX 8880/8850 MG > Configuration
Center.
Step 2 Under the Elements tab, within the node, double-click the VXSM card.
Step 3 Click the VOICE Features tab.
Step 4 Choose the Announcement Controls option from the Category drop-down arrow.
Step 5 Configure the fields.
Note Table 6-58 describes fields in the VXSM Voice Features tab, Announcement Controls category.
Step 6 Click Apply to configure the announcement controls.
T200 Specifies the maximum time to wait for acknowledgment of a transmit frame.
T203 Specifies the maximum time in milliseconds allowed without frames being
exchanged. This value should be greater than the value for T200.
Table 6-57 Field Descriptions for the VXSM PRI-BH Create Window (continued)
Field Name Description