Specifications

Setting Call Control Options
ShoreTel 6.1 Administration Guide 9 – 15
FAX and Modem Calls This drop-down list lets you select the type of encoding
used for faxing or when calls are made from a modem.
Choose one of these encodings:
• Linear (128 Kbps)
• G.711 (64 Kbps)—the default
Maximum Inter-Site Jitter Buffer—This parameter sets the
maximum size of the jitter buffer. A larger jitter buffer might
result in more delay between calling parties, which might
degrade the quality of service. The buffer can be set from 20
to 300 msec. The default is 50 msec.
DiffServ/TOS Byte Enter a Types of Service (TOS) value or a DiffServ value,
whichever your network currently supports. This byte is
applied to media originating from all ShoreGear physical
switches (SoftSwitches excluded) and IP phones. The value
entered in this field must be a decimal number 0 to 255.
Admission control
algorithm assumes RTP
header compression is
being used
To enable this feature, select the check box.
Enable Media
Encryption
To enable this feature, select the check box. Note that
encryption occurs at the application layer and that only calls
inside a ShoreTel network will be encrypted. Once the call
passes through TDM filtering the encryption is stripped
away and the conversation is no longer encrypted.
Always Use Port 5004
for RTP
By default, this box is checked. You should clear this check
box to enable interoperability with third-party SIP devices.
Note: All IP Phones and switches must be rebooted for
settings to take effect. Failure to reboot may result in one
way media.
Trunk-to-Trunk Transfer and Tandem Trunks