68 Planning and Installation Guide ShoreTel IP Phone 930D
Reference Material Understanding Configuration Parameters
MgcAuthenticate 1 ASCII character If enabled, then only authenticated MGC messages are
accepted by the base.
MgcpBackoffEnable 0 or 1 Enable or disable the advanced retransmit algorithm. If
set to 0 the legacy behavior of retransmitting 7 times at
100 mS intervals is used.
MgcpMaxRetx 1 to 10 Maximum number of unacknowledged retries before the
handset enters the disconnected state.
MgcpRtoInit MgcpToMin to 1000 Initial retransmit timeout value in milliseconds. Must be
equal or greater than MgcpToMin.
MgcpToMin 50 to 1000 Minimum allowable retransmit timeout in milliseconds.
Prevents good acknowledgement algorithm from
reducing the interval to too small of a value.
MgcpTsMax 1 to 10 Maximum amount of time in seconds that can elapse
before the final retry attempt is sent before the handset
enters the disconnected state.
MgcServers Up to 64 ASCII
Comma separated list of up to 2 MGC Servers. Must be
in dotted decimal format.
MonthsofYear Up to 64 ASCII
Comma separated list of the months of the year
abbreviations used by the handset to display the time.
First month is January.
NoSvc Up to 64 ASCII
String that is displayed when the handset has lost
service. Characters in this string must be specified using
CFG “No Service”
PersistantEvents Up to 255 ASCII
Comma separated list of persistent events. Example:
ReqSvc Up to 64 ASCII
String that is displayed as the handset is waiting for
service from the switch. Characters in this string must be
specified using UTF-8.
RtpBase Up to 5 ASCII
This is the base port from which the base transmits and
The valid range should be an even number from 3000 to
65408. 65408 is the highest even 16 bit number that
allows enough headroom for the 64 RTP and 64 RTCP
ports that are reserved when you establish an RTP base
Given an RTP base, the base should use the next 64
consecutive even numbers for RTP ports. If within that
range an existing (reserved) odd or even UDP port
number is used the base should skip over an even/odd
pair to the next even number. So, for example, if the user
set rtpBase to 5550 we would use 5550, 5552, 5556,
5558, etc. In this example we skipped 5554 because
5555 is a reserved port used by the phonectl server
(Actually 5554 is also used and also provides a reason
for skipping over 5554).
If an odd number is specified, the base should use the
next lowest even number if it fits the above limitations.
RtcpEnable 0 or 1 If Enabled the base will send an RTCP report to the far
Parameter Value Type Value Sources Default