Trunks
ISDN
6-28 Strata CTX Programming - Part 2: CTX WinAdmin Programming 6/04
25 RBT on Incoming Call Enable Ringback Tone when terminating a call. This field is only valid for Nat’l
ISDN.
Possible values: Enable or Disable (default)
26 Network Mode Set this span as Master or Slave for Layer 2 of a QSIG PRI. The opposite value
must be set for the node in which this QSIG PRI terminates. This governs call
setup activity and is not related to clock synchronization.
Possible values: Master (default) or Slave
27 Negotiation Priority Sets this span as Side A or Side B for Layer 3 of a QSIG PRI. The opposite value
must be set for the node in which this QSIG PRI terminates.
Possible values: Side A (default) or Side B
28 Layer 1 Short Break
Tolerant
If layer 1 is interrupted for less than 90 seconds. CTX will keep the current calls
open. (This feature is available with Strata CTX R2.2 or higher and CTX WinAdmin
R2.2G0 or higher.)
Possible values: Enable (default) or Disable
29 2-B channel Transfer Enable this option to allow 2-B channel conference on PRI calls. This allows to PRI
channels to be connected in the same conference or Tandem call.
Note This option must also be enabled by PRI provider to allow it to work.
30 Q931 Protocol Timer Sets the Q931 Protocol Timer. If Long is set, T303 is 8s and T301 is 300s.
Table 6-2 Bearer Services Table
Bearer Services Nat’l ISDN ETSI TTC
Circuit
Mode
Speech X X X
3.1 KHz Audio X X X
7 KHz Audio X X
unrestricted digital
information
64 kbps X X X
Rate adaptation from 56
kbps
X
2x64 X X
384kbp (H0) X X X
1536kbps (H11) X X X
1920kbps (H12) X
multirate (n x 64 kbps) X
Restricted digital Information X X
Video X X
Packet
Mode
Shelf/Slot/Circuit
FIELD DESCRIPTION
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