V7122 Gateway User Guide
331
Content-Disposition: signal; handling=required.
Call setup (originating gateway):
The QSIG SETUP request is encapsulated in a SIP INVITE message without being
altered. After the SIP INVITE request is sent, the gateway doesn’t encapsulate the
following QSIG message until a SIP 200 OK response is received. If the originating
gateway receives a 4xx, 5xx or 6xx response, it disconnects the QSIG call with a ‘no
route to destination’ cause.
Call setup (terminating gateway):
After the terminating gateway receives a SIP INVITE request with a Content-Type:
application/QSIG, it sends the encapsulated QSIG SETUP message to the Tel side and
sends a 200 OK response (no 1xx response is sent) to IP. The 200 OK response
includes an encapsulated QSIG CALL PROCEEDING message (without waiting for a
CALL PROCEEDING message from the Tel side). If tunneling is disabled and the
incoming INVITE includes a QSIG body, a 415 response is sent.
Mid-call communication:
After the SIP connection is established, all QSIG messages are encapsulated in SIP
INFO messages.
Call tear-down:
The SIP connection is terminated once the QSIG call is complete. The RELEASE
COMPLETE message is encapsulated in the SIP BYE message that terminates the
session.
To enable QSIG tunneling set the parameter EnableQSIGTunneling to 1 on both the
originating and terminating gateways, and the parameter ‘ISDNDuplicateQ931BuffMode’ to
128 (duplicate all messages) (both parameters are described in
ISDN and CAS Interworking-
Related Parameters
).
Содержание VCX V7122
Страница 28: ...28 V7122 GatewayUser Guide ...
Страница 39: ...V7122 Gateway User Guide 39 Reader s Notes ...
Страница 40: ...40 V7122 GatewayUser Guide ...
Страница 58: ...58 V7122 GatewayUser Guide Reader s Notes ...
Страница 66: ...66 V7122 GatewayUser Guide Reader s Notes ...
Страница 144: ...144 V7122 GatewayUser Guide Reader s Notes ...
Страница 239: ...V7122 Gateway User Guide 239 Reader s Notes ...
Страница 240: ...240 V7122 GatewayUser Guide ...
Страница 246: ...246 V7122 GatewayUser Guide Reader s Notes ...
Страница 270: ...270 V7122 GatewayUser Guide Reader s Notes ...
Страница 287: ...V7122 Gateway User Guide 287 Reader s Notes ...
Страница 288: ...288 V7122 GatewayUser Guide ...
Страница 294: ...294 V7122 GatewayUser Guide Reader s Notes ...
Страница 300: ...300 V7122 GatewayUser Guide Figure 88 Gateway s Startup Process ...
Страница 315: ...V7122 Gateway User Guide 315 Reader s Notes ...
Страница 316: ...316 V7122 GatewayUser Guide ...
Страница 332: ...332 V7122 GatewayUser Guide Reader s Notes ...
Страница 358: ...358 V7122 GatewayUser Guide Reader s Notes ...
Страница 362: ...362 V7122 GatewayUser Guide Reader s Notes ...
Страница 389: ...V7122 Gateway User Guide 389 Reader s Notes ...
Страница 390: ...390 V7122 GatewayUser Guide ...
Страница 398: ...398 V7122 GatewayUser Guide Reader s Notes ...
Страница 406: ...406 V7122 GatewayUser Guide Reader s Notes ...
Страница 408: ...408 V7122 GatewayUser Guide Reader s Notes ...
Страница 409: ...V7122 Gateway User Guide 409 ...
Страница 419: ...V7122 Gateway User Guide 419 Reader s Notes ...
Страница 437: ...V7122 Gateway User Guide 437 Reader s Notes ...
Страница 452: ...452 V7122 GatewayUser Guide Figure 137 UDP2File Utility ...
Страница 453: ...V7122 Gateway User Guide 453 Reader s Notes ...
Страница 459: ...V7122 Gateway User Guide 459 Reader s Notes ...
Страница 475: ...V7122 Gateway User Guide 475 ...