21 December, 2001
BIT SWITCHES
3-57
Service
Tables
G4 Internal Switch 15: D channel layer 3 (Judgement R: MSG)
No.
FUNCTION
COMMENTS
0
Action when receiving [SETUP]
signal containing no called
subaddress
0:
A reply is sent
1:
No reply is sent
This bit depends on user requirements. If it is
at 1, communication will be halted if the other
terminal has not input the subaddress.
1
to
4
Not used
Do not change the settings
5
Global call reference
0:
Ignored
1:
Global call number is used
Global call reference means 'call reference
value = 0'. This bit determines how to deal
with such an incoming call if received from the
network.
Keep this bit at 1 in Germany 1TR6.
6-7
Not used
Do not change these settings.
G4 Internal Switch 16: D channel layer 3 (Approval)
No.
FUNCTION
COMMENTS
0-1
Answer delay time
Bit 1
0
Setting
0
0
No delay
0
1
1.0 s delayed (1TR6)
1
0
0.5 s delayed
1
1
Not used
In some countries, a time delay to answer a
call is required.
Otherwise, use this switch as follows:
If the machine is connected to the same bus
from the DSU as a model K200 is connected,
the machine receives most of the calls
because the response time to a call is faster
than the K200.
If the customer wants the K200 to receive
most of the calls, adjust the response time
using these bits.
If the customer does not want one machine to
receive most of the calls, use subaddresses to
identify each terminal.
2
Action when receiving [SETUP]
signal containing user-specific
called party subaddress
0:
Ignores the call
1:
Receives the call
Normally, the 3rd octet of called party
subaddress information in the [SETUP] signal
is set to NSAP. However, some networks may
add “user-specific” subaddress to the
[SETUP] signal, and the result of this is that
the machine won't answer the call if a
subaddress is specified.
So, change this bit to 1 to let the machine
receive the call if the machine is connected to
such a network.
3-4
Not used
Do not change these settings.
5
Indicated bearer capabilities
0:
56 kbps
1:
64 kbps
1:
64 kbps calling is indicated in the Bearer
Capabilities, but communication is at 56 k.
Use this bit if the machine is connected to
a network which does not accept a 56 kbps
data transfer rate as a bearer capability.
6
Not used
Do not change these settings.
