Huawei MU609 - Internal;External Protocol Stacks and Voice Calls

HUAWEI MU609 HSPA LGA Module
Application Guide
Concurrent Service Application Scenarios
Issue 02 (2013-09-18)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
103
13.3 Internal/External Protocol Stacks and Voice Calls
WCDMA networks support concurrent internal/external protocol stack services and
voice calls.
GSM/GPRS networks offer limited support for concurrent internal/external protocol
stack services and voice calls.
First Service
Concurrent
Service
Service State
Internal
protocol stack
MO voice call
Suspend data transmission through the UART
port until a voice call is hung up.
MT voice call
Huawei's extended AT command AT^DVCFG
can be used to configure the priorities of the
internal protocol stack service and MT voice call.
External
protocol stack
MO voice call
Suspend data transmission through the MODEM
port until a voice call is hung up.
MT voice call
Voice calls
Internal
protocol stack
Data connections through the UART port cannot
be established (executing AT^IPINIT fails).
External
protocol stack
Data connections can be established through
the MODEM port, but data cannot be transmitted
until the voice call is hung up.
The following table describes the process of concurrent internal protocol stack
services and voice calls.
Note:
Settings configured by AT^DVCFG take effect immediately and are effective only in
transparent transmission mode of the internal protocol stack services.
Command
Description
(UART)
AT^IPOPEN=1,"TCP","172.22.44.33",700
0,6000
Establish a TCP link at the module's
UART port.
OK
^IPDATA: 1,536,No.51:*****…
The module transmits data in non-
transparent transmission mode.
(Another party calls the module.)