Operation Manual
Cisco SPA IP Phone Field Reference
Regional Tab
Cisco Small Business SPA300 Series, SPA500 Series, and WIP310 IP Phone Administration Guide 254
A
Control Timer Values (sec)
Parameter Description
Reorder Delay Delay after far end hangs up before reorder (busy) tone 
is played. 0 = plays immediately, inf = never plays. 
Range: 0–255 seconds. Set to 255 to return the phone 
immediately to on-hook status and to not play the tone.
Defaults to 5.
Call Back Expires  Expiration time in seconds of a call back activation. 
Range: 0–65535 seconds.
Defaults to 1800.
Call Back Retry Intvl Call back retry interval in seconds. Range: 0–255 
seconds.
Defaults to 30.
Call Back Delay  Delay after receiving the first SIP 18x response before 
declaring the remote end is ringing. If a busy response 
is received during this time, the SPA9000 still 
considers the call as failed and keeps on retrying.
Defaults to 0.5.
Interdigit Long Timer  Long timeout between entering digits when dialing. 
The interdigit timer values are used as defaults when 
dialing. The Interdigit_Long_Timer is used after any 
one digit, if all valid matching sequences in the dial 
plan are incomplete as dialed. Range: 0–64 seconds.
Defaults to 10.
Interdigit Short Timer Short timeout between entering digits when dialing. 
The Interdigit_Short_Timer is used after any one digit, 
if at least one matching sequence is complete as 
dialed, but more dialed digits would match other as yet 
incomplete sequences. Range: 0–64 seconds.
Defaults to 3.
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