Telephony Integration field descriptions

Name	Description
BASIC CONFIGURATION
Switch Integration Type	Messaging uses SIP integration. The SIP SPECIFIC CONFIGURATION section is available only for SIP integration.
IP Address Version	The version of the IP address.

Name	Description
SIP SPECIFIC CONFIGURATION
Transport Method	The telephony server uses the transport method for SIP signaling. The transport method of the application server and the telephony server must match. The types of transport methods: TCP: Not encrypted. Use port 5060. TLS: Encrypted. Use port 5061.
Far-end Connections	The total number of SIP proxy servers. The valid far-end connections: Direct (no proxy): Select 1. Session Manager: Select a maximum of 12. SIP Enablement Services: Select 1. AudioCodes gateway: Select a maximum of 4. Other application servers for the same site. The number of Connection fields expand to match the number you select.
Connection x	The IP address and the port number of each far-end connection. If you select more than one far-end connection, the system accepts incoming calls from any of the servers on the connection list. The system attempts to place outgoing calls to the first server that accepts a connection in the order that you listed. MWI only uses one connection regardless of the number of sites or servers in your deployment.
Messaging Address	The IP address of the near-end application server. This address is always a read-only field. The port numbers: TCP = 5060 TLS = 5061
SIP Domain	The domain names of the application server and the far-end connection, which must match. Example: sip.example.com
Messaging Ports	The maximum number of active calls to or from a user. The range of the Call Answer Ports is 2 to 100.
Switch Trunks	The number of trunk members for Messaging on the telephony server. The minimum is the number of call answer ports plus one. The maximum is 120 trunk members on the telephony server. Trunk members in excess of the call answer ports are for features such as transfer, which require additional switch trunks. The number in the Switch Trunks field must match the number of trunk members on the telephony server if that server specifies a maximum.
Advanced Options: When the Advanced Options area is hidden, the system displays the Show Advanced Options button. If you click Show Advanced Options, the button changes to Hide Advanced Options and the system displays the following fields.
Quality Of Service	Use this field if your IP network infrastructure supports the QoS feature. Accept the default values in QoS or enter new values. The values must match the number in the network region of the telephony server that the Messaging-signaling group uses. The range for both fields is 0 to 63. Call Control PHB sets the quality of service level for call control messages. Audio PHB sets the quality for audio streams.
UDP Port Range	The range of port numbers used by User Datagram Protocol (UDP) for Real Time Protocol (RTP). The default range is 8000 through 10000. You can change the Start value. The system uses the number of available trunks to calculate the End value. Ensure that the range of ports that you allocate to UDP does not conflict with ports used for other purposes.
Media Encryption	The type of Secure Real-time Transport Protocol (SRTP) media encryptions that the telephony server uses. This field is optional.
SIP INFO for DTMF	The SIP INFO messages for DTMF out-of-band. Select one of the following options: Ignore: To ignore all SIP INFO DTMF digits in the signaling stream. Accept: To accept all incoming SIP INFO messages for the two formats and interpret the messages received in the RTP stream as RFC 2833-compliant digits. The system sends outbound DTMF as SIP INFO messages with application type dtmf-relay with a specified duration of 250 ms. The default value is Ignore. For more information on SIP INFO message formats, see Support for SIP INFO messages on SIP connections.
Media Encryption During CapNeg	When capability negotiation (CapNeg) is present in Session Description Protocol (SDP), Media encryption is required. The options are: Enabled: To activate the default value. Disabled: To change the value in the Media Encryption field to None. Messaging automatically changes the value, and you cannot change the value. Select Disabled only if required for a specific telephony integration. For more information, see the configuration notes.
Supported Header includes “replaces”	The supported header must include the replaces value so that endpoints reflect their capabilities in the SIP headers and Messaging communicates effectively with a specific telephony integration. The options are: no: The default value. yes: Only for a specific telephony integration. For more information, see the configuration notes.
Monitor Far-end OPTIONS messages	Messaging proactively monitors the SIP OPTIONS messages that the far-end sends. If Messaging does not receive a SIP OPTIONS message from the far-end within the time specified in the Proactive Interval field, then Messaging considers the far-end as nonfunctional or unreachable. The options are: no: The default value. yes: Set the value in the Proactive Interval field to the interval for which the far-end is configured for sending the OPTIONS message. The value must be in seconds.
Inactive Link Actions	Only available if the value in the Monitor Far-end OPTIONS messages field is set to yes. The options are: Alarm Only: Messaging generates an alarm whenever an expected OPTIONS message does not arrive within the Proactive Interval period plus 30% of that time. On the next receipt of SIP OPTIONS or the next incoming call, the system clears the alarm. Close Connections: Messaging generates an alarm, closes all incoming connections, and drops all active calls at that point.