The Ma5620G Plays The Busy Tone After Offhook Because Of Incorrect Descriptor Signaling Delivered By The Softswitch Of Company X - Huawei MA5600 Manual

NGN Cases
MA5680T is restarted, the LSW port is not in the UP state. As a result, when the high
layer protocol of the optical port is enabled, an error is returned and thus the data
configuration recovery fails. Therefore, the board is always in the config state.
Handling Proces
1. Delete the data configuration on the GICF board and then delete the GICF board so
s:
that the MA5680T can discovers the board automatically. Confirm the board and wait
until the board works in the normal state.
2. Reconfigure the service data on the upstream GICF board. The service returns to
normal.
3. Upgrade the MA5680T to V800R105C33B015 to solve the problem.
Suggestions and
The condition for triggering this fault is: If service data is configured on the GICF board of
Summary:
the MA5680T, the GICF board is in the config state and the service cannot return to
normal after the MA5680T is restarted.
This fault may not occur in V800R105C33B011 and can be rectified after the MA5680T
is upgraded to V800R105C33B015.
3.10 The MA5620G Plays the Busy Tone After Offhook Because of Incorrect Descriptor
Signaling Delivered by the Softswitch of company x
The MA5620G Plays the Busy Tone After Offhook Because of Incorrect Descriptor
Title:
Signaling Delivered by the Softswitch of company x
ID: SE0000367076
Information
Troubleshooting Cases
Type :
Product Family: Optical Access
Fault Type: Equipment Interconnection
Keywords: MA5620G, VoIP, busy tone, RFC2327
Permission
04Common Users Permission
Level:
Phenomenon De
Networking: MA5620G--softswitch of company Z
scription:
Version: SmartAX MA5600 V800R305C01B011HP0001
Symptom: Huawei MA5620G is connected to the softswitch of company Z. After the
VoIP service is provided, the MA5620G plays the busy tone after offhook.
Alarm Informatio
Null
n:
Cause Analysi
1. The MG interface is disconnected.
s:
2. The signaling is not compatible.
Handling Proces
1. Check the status of the MG interface. The MG interface is in the normal state.
s:
2. Trace the H248 signaling. The softswitch sends the busy tone signal and the local
descriptor delivered by the softswitch is incorrect. A space exists between 8 and \n,
which does not conform to the RFC2327 protocol.
The incorrect packets are as follows:
v=0\n
c=IN IP4 $\n
m=audio $ RTP/AVP 8 \n//A space exists between 8 and \n.
a=ptime:20\n\n
3. Ask company Z to modify data of the softswitch. After the softswitch delivers the local
descriptor that conforms to the RFC2327 protocol, the caller and callee can make and
50
Confidential Information of Huawei. No Spreading without Permission
Chapter 3 GPON FTTx Cases
Quality Level:
C
Product: MA5680T