NEC NEAX 2400 IPX, Programming Manual

Page: 219 / 316

NDA-24305 CHAPTER 6
Page 201
Revision 1.0
Q-SIG/ISDN INTERNATIONAL GATEWAY SWITCHING
2. Operating Procedure
No manual operation is required.
3. Service Conditions
1. This feature is available since Series 7400 Release 9 software.
2. This feature is available for a call to ISDN line (This feature does not support the station-to-station call nor
an outgoing call to CCIS line).
3. Only user information Layer 1 protocol included with Bearer Capability (BC) information element is
converted. Layer 1 protocol included with Low Layer Capability (LLC) and the other information element
are not applied.
[Case 2: Conversion in Originating Office]
(a) Outgoing Call from D
term
/ATT (SETUP message is not sent)
When A-law is selected as output Layer 1 protocol to an outgoing trunk.
(b) Outgoing Call from ISDN terminal/PS (SETUP message is sent)
When µ-law is selected as output Layer 1 protocol to an outgoing trunk.
NEAX2400 IPX
PBX
(A-law)
ISDN Line
N EC
A-law
A-law (SETUP)
ARTI data:
A-law (UALAW = 2)
NEAX2400 IPX
A-law (SETUP)
ISDN Line
A-law
(SETUP)
µ
-law
ARTI data:
µ
-law (UALAW = 1)
PBX
( µ -law)
µ
-law (SETUP)
C a rri ty
2 3 1
5 6 4
8 9 7
0
*