Explanation of Inbound Callset Configuration File

StationList

This contains StationRange elements. When a call is received, it contains the station extension. Inbound callset, which contains this specific station extension, answers the call. If none of the inbound callsets contain the station extension received, then DefaultInboundCallSet answers the call. DefaultInboundCallSet does not contain the StationList element, since it answers calls for all station extensions.

In addition to the StationRange elements, the StationList element can contain the Station Name attribute. See Registering a station based on a SIP name.

WaitBeforeAnswer

This is the delay in seconds before an inbound call is answered (picked up). The default value is 0.

This is different from a wait action. This element delays answering of the inbound call. In wait action, by contrast, a call is answered and connected, but does not play audio until after the duration specified in wait action.

WaitBeforeAnswerRange

If you want variable delay before answering the call, then use the WaitBeforeAnswerRange element. For example,

<WaitBeforeAnswerRange Type="Random" StartNumber="2" EndNumber="30" IncrStep="2" />

Here, it creates a range of values between 2 and 30 with increments of 2. Values are 2,4,6....30. Interaction SIP Bulk Caller assigns a random value within the range to each call.

CallDurationWarning

This value is in seconds and the default value is 900 seconds (15 minutes). If call duration exceeds this value, then Interaction SIP Bulk Caller stores it as a warning message in its logs. This is used to track hung calls.

MediaType

The MediaType value can be Normal or Early. If media type is set to early, then media information is sent in Session Progress (183). In such a case, set the number of seconds in WaitBeforeAnswer. Interaction SIP Bulk Caller sends an answer after the number of seconds in WaitBeforeAnswer.

AutoStart

If this value is set to true, then the callset is automatically starts when the Interaction SIP Bulk Caller service starts.

Script

This is a set of actions executed when an inbound call is received. It is the same as the outbound callset. Refer to Outbound CallSet for more details.

Fax Action

This lets you specify inbound calls as faxes. Interaction SIP Bulk Caller supports T.30 and T.38 fax transmission. To receive faxes, add this code to the configuration file:

<Action Type="Fax" Direction="Receive" ReceiveDirectory="d:\Temp\"/>

In the code line's ReceiveDirectory parameter, replace d:\Temp\ in the example code line with the wanted directory path.

Note that a call set can contain only one fax action. Combining a fax action withother actions (e.g., play, wait, etc.) or another fax action is not allowed.

Hold Action

Each call can be placed on hold. In the Filename attribute, put only the name of the audio file. If the Hold action has a Duration attribute, then the hold lasts for the specified duration. The Hold makes the SBC send a SIP UPDATE message to the remote user agent (UA). This action simulates pressing a Hold button on an IP phone. If the Filename attribute is empty (""), the SBC sends the unspecified IP (0.0.0.0 or ::) address in the SIP UPDATE message depending on the IP family SIP Line config setting.

SendPTime

Packetization interval in milliseconds of audio sent by the script. Valid values are 10 - 160. For G729A and G729AB, the value is rounded up to the next multiple of 10 ms. This etting has no effect on:

• The G722, GSM, and G723 AudioFormats.

• The packetization interval of RFC 2833 events or T.38 UDPTL streams.

With or without this setting, SIP Bulk Caller ignores any a=ptime and a=maxptime lines in the SDP it receives.