Specifications

Setting Call Control Options
9 – 14 ShoreTel, Inc.
Park Timeout after
NNNNNN seconds
You can set how long a call will remain on park before the
call returns to the party that parked the call. The timeout is
in seconds and can have a value from 1 to 100,000 seconds.
Unchecking the Park Timeout check box allows calls to be
parked indefinitely.
Hang Up Make Me
Conference after NN
minutes of silence
The default timeout is 20 minutes. If a conference is silent
for the set length of time, a hang-up will be forced.
Delay before sending
DTMF to Fax Server
Enter the amount of delay (in milliseconds) after which the
DTMF information will be sent to the fax server. Consult
your fax server documentation to find out how much delay
the fax server expects.
Enable SIP Session
Timer
Select this check box to have keepalive heartbeats sent to
SIP endpoints.
Session Interval
(90-3600)
Enter the number of seconds in the Session Interval field to
specify the keepalive interval at which heartbeats will be
broadcast. The heartbeat will be sent out at the specified
period and if no response is received, the session will be
dropped. (See RFC 4028 for details on this parameter.)
Refresher Use the Refresher drop-down menu to specify whether the
SIP Session Timer will be applied to the caller or callee.
Choices are None, Caller UAC, and Caller UAS. (See RFC
4028 for details on this parameter.)
Voice Encoding and Quality of Service
Intra-Site Calls (calls
within a site)
This drop-down list lets you select the type of encoding
used when making calls within your site. Choose one of
these encodings:
• Linear Broadband (256 Kbps)
• Linear (128 Kbps)
• G.711 (64 Kbps)—the default
• ADPCM (32 Kbps)
• G.729a (8 Kbps)
Inter-Site Calls (calls
between sites)
This drop-down list lets you select the type of encoding
used when making calls between your sites. Choose one of
these encodings:
• Linear Broadband (256 Kbps)
• Linear (128 Kbps)
• G.711 (64 Kbps)
• ADPCM (32 Kbps)—the default
• G.729a (8 Kbps)