User`s manual

Version 5.4 167 May 2008
SIP User's Manual 3. Web-Based Management
2. Configure the parameters according to the table below.
3. Click the Submit button to save your changes.
4. To save the changes to flash memory, refer to ''Saving Configuration'' on page 265.
Table 3-36: Advanced Parameters Description
Parameter Description
General
IP Security
[SecureCallsFromIP]
Determines whether the device accepts SIP calls received only from IP
addresses listed in the 'Tel to IP Routing' table (refer to ''Tel to IP
Routing Table'' on page 200). This is useful in preventing unwanted SIP
calls or messages and/or VoIP spam.
 [0] Disable = Device accepts all SIP calls (default).
 [1] Enable = Device accepts SIP calls only from IP addresses defined
in the 'Tel to IP Routing' table. The device rejects all calls from
unknown IP addresses.
Note: Specifying the IP address of a Proxy server in the 'Tel to IP
Routing' table enables the device to accept only calls originating from the
Proxy server and reject all other calls that don’t appear in this table.
Filter Calls to IP
[FilterCalls2IP]
Enables filtering of Tel-to-IP calls when a Proxy is used (i.e.,
IsProxyUsed parameter is set to 1 -- refer to ''Proxy & Registration
Parameters'' on page 146).
 [0] Don't Filter = device doesn't filter calls when using a Proxy.
(default)
 [1] Filter = Filtering is enabled.
When this parameter is enabled and a Proxy is used, the device first
checks the 'Tel-to-IP Routing' table before making a call through the
Proxy. If the number is not allowed (i.e., number isn't listed in the table or
a call restriction routing rule of IP address 0.0.0.0 is applied), the call is
released.
Note: When no Proxy is used, this parameter must be disabled and
filtering is according to the 'Tel-to-IP Routing' table.
Enable Digit Delivery to IP
[EnableDigitDelivery2IP]
 [0] Disable = Disabled (default).
 [1] Enable = Enable digit delivery to IP.
The digit delivery feature enables sending DTMF digits to the destination
IP address after the Tel-to-IP call is answered.
To enable this feature, modify the called number to include at least one
'p' character.The device uses the digits before the 'p' character in the
initial INVITE message. After the call is answered, the device waits for
the required time (number of 'p' times 1.5 seconds) and then sends the
rest of the DTMF digits using the method chosen (in-band or out-of-
band).
Note: The called number can include several 'p' characters (1.5 seconds
pause), for example, 1001pp699, 8888p9p300.