AudioCodes Mediant 800 MSBG - Figure 8-19: Call Flow for One-Stage Dialing

Version 6.2 431 February 2011
SIP User's Manual 8. IP Telephony Capabilities
• Time to wait before dialing
• Answer supervision
 Two-stage dialing (see ''Two-Stage Dialing'' on page 432)
 Dialing time:
DID wink (see ''DID Wink'' on page 433)
8.3.5.2.1.1 One-Stage Dialing
One-stage dialing is when the FXO device receives an IP-to-Tel call, off-hooks the PBX
line connected to the telephone, and then immediately dials the destination telephone
number. In other words, the IP caller doesn't dial the PSTN number upon hearing a dial
tone.
Figure 8-19: Call Flow for One-Stage Dialing
One-stage dialing incorporates the following FXO functionality:
 Waiting for Dial Tone: Enables the device to dial the digits to the Tel side only after
detecting a dial tone from the PBX line. The ini file parameter IsWaitForDialTone is
used to configure this operation.
 Time to Wait Before Dialing: Defines the time (in msec) between seizing the FXO
line and starting to dial the digits. The ini file parameter WaitForDialTime is used to
configure this operation.
Note: The ini file parameter IsWaitForDialTone must be disabled for this mode.