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CHAPTER 6 NDA-24305
Page 290
Revision 1.0
Q-SIG (CIRCUIT SWITCHED BASIC CALL - ETSI VERSION)
2. Operating Procedure
No manual operation is required.
3. Service Conditions
1. (Series 7300 Release 4 software enhancement)The multi-rate bearer service is available.
Multi-rate bearer service: Desirably multiplied value of 64 (64 kbps × “n”-desired number) is available for
the data transmission speed in addition to the current speed such as 384K (64K
× 6), 1536K (64K × 24) and 1920K (64K × 30).
The followings are the service condition concerned with the multi-rate bearer service.
(a) Routing data must be assigned per physical interface (PRT/DTI).
(b) Overlap sending (LCRS) is not provided with this feature.
(c) Multi-rate bearer service is provided for the PBXs connecting directly with the Q-sig interface. (If the
PBXs are connected with the different interface such as the interface defined by Q.931/Q.931-a or
CCIS, only H0/H1 service (transfer rate is 384 kbps/1.5 Mbps) is available.)
2. (Series 7300 Release 4 software enhancement) The User-to-User Signaling (UUS) can be sent via Q-sig
interface.
The followings are the conditions for the UUS transmission.
(a) The maximum data capacity for the UUS is 128 bytes and the latter part of excessive data is
automatically omitted.
(b) The following messages for call establishment/clearing may include the UUS.
•Setup
• Alerting
• Connect
• Progress
• Disconnect
• Release
• Release Complete