Administering the Switch Link

Procedure

On the navigation pane, under Switch Link Administration, click Switch Link Admin..
In the Switch Number field, type 1.
Select an extension length in the Extension Length field. The extension length must match the length assigned to the station on Communication Manager.
In the Switch Integration Type field, enter H.323 as the type of integration between the Communication Manager virtual system and the Communication Manager Messaging virtual system.
In the IP Address Version field, select IPv4 or IPv6.
Note
IPv6 is available for selection only if the template is configured for this IP format.
In the Quality of Service field, type a value for Call Control Per Hop Behavior (PHB) and Audio PHB or accept the default values. The value you enter for both the fields sets the quality of service level for call control messages and audio streams respectively on networks that support this feature. The value for both the fields must be in the range 0 to 63. The value must match the corresponding number configured for the network region used by the messaging signaling group on the switch.
If you select IPv6, in the Link Addresses > Switch field, manually type the IP address in IPv6 format of the Communication Manager virtual system.
If you select IPv6, in the Link Addresses > Messaging field, manually type the IP address in IPv6 format of the messaging virtual system.
In the Messaging Ports field, enter the number of voice ports the messaging virtual system uses for mailbox connections to the Communication Manager virtual system.
In the Switch Trunks > Total field, enter the value of the total switch trunks for Communication Manager.
In the Signal Group 1 field, enter the value of the Messaging TCP port as 11720 and the Switch TCP port as 1720. The port numbers have to be different because Communication Manager and Communication Manager Messaging share the same IP address.
If you have configured SRTP for messaging, in the Media Encryption field, enter the type of Secure Real-time Transport Protocol (SRTP) encryption for messaging.
Note
You also need to configure SRTP on the Communication Manager virtual system.
Type the Passphrase. This must match the Passphrase administered on the Communication Manager. This field is optional and is to be used only if SRTP encryption has been set on Communication Manager.
Click Save.
The system calculates the number transfer ports and displays them in the Transfer Ports field.

Note
The number of the H.323 trunks set on the Communication Manager virtual machine server must accommodate the sum of voice ports and transfer ports you administer on the Switch Link screen. This number of H.323 trunks for messaging is in addition to the H.323 trunks that the Communication Manager virtual machine requires for other functions, such as IP telephone connections, faxes, and other data connections throughout the network. The number of H.323 trunks on the Communication Manager virtual machine is listed in the Maximum Number of H.323 Trunks field, which is available on the System Parameters Customer Options SAT screen.