SIP User's Manual
7.3.2.2
Collecting Digits Mode
When automatic dialing is not defined, the device collects the digits.
The SIP call flow diagram below illustrates the Collecting Digits Mode.
7.3.2.3
Ring Detection Timeout
The ini file parameters IsWaitForDialTone and WaitForDialTone apply to Ring Detection
Timeout. The operation of Ring Detection Timeout depends on the following:
No automatic dialing and Caller ID is enabled: if the second ring signal doesn't arrive
for Ring Detection Timeout, the device doesn't initiate a call to the IP.
Automatic dialing is enabled: if the remote party doesn't answer the call, and the
ringing signal stops for Ring Detection Timeout, the FXO releases the IP call.
Ring Detection Timeout supports full ring cycle of ring on and ring off (from ring start to ring
start).
Version 5.4
Figure 7-4: Call Flow for Collecting Digits Mode
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7. IP Telephony Capabilities
May 2008