Huawei eSpace IAD Operating instructions

eSpace IAD
V300R001C07
Troubleshooting
Issue
02
Date
2012-02-29
HUAWEI TECHNOLOGIES CO., LTD.

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and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.
All other trademarks and trade names mentioned in this document are the property of their respective
holders.
Notice
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the customer. All or part of the products, services and features described in this document may not be
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The information in this document is subject to change without notice. Every effort has been made in the
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recommendations in this document do not constitute the warranty of any kind, express or implied.
Huawei Technologies Co., Ltd.
Address:
Huawei Industrial Base
Bantian, Longgang
Shenzhen 518129
People's Republic of China
Website:
http://www.huawei.com
Email:
[e-mail]

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Contents
About This Document..................................................................................................................... 1
1 Overview......................................................................................................................................... 2
1.1 Fault Level ..........................................................................................................................................................................2
1.2 Precautions..........................................................................................................................................................................3
1.3 Troubleshooting Process...................................................................................................................................................3
1.3.1 Collecting Fault Information .................................................................................................................................4
1.3.2 Determining the Fault Category............................................................................................................................6
1.3.3 Locating and Rectifying a Fault............................................................................................................................6
1.3.4 Verifying Fault Rectification .................................................................................................................................6
1.3.5 Contacting Technical Support ...............................................................................................................................6
1.3.6 Compiling a Troubleshooting Report...................................................................................................................7
2 Analyzing and Rectifying Faults ............................................................................................... 8
2.1 Call Faults ...........................................................................................................................................................................8
2.1.1 IAD Phone One-Way Audio Caused by the Defense Against UDP Flood Attacks......................................8
2.1.2 Voice Tremble Occurs During IAD Calls............................................................................................................9
2.1.3 Busy Tone When Picking Up or Dialing a Number ........................................................................................10
2.1.4 Phones Connected to the IAD Can Ring but Nothing Is Heard After Pickup.............................................12
2.1.5 Phones Connected to IAD Cannot Make Calls to Fixed-Line Phones in a Specified Province ..............12
2.1.6A User Cannot Hear Other's Voice on the Phone Connected to IADAfter 5 to 10 Minutes ....................14
2.1.7 POTS Phone Users Cannot Hear the Two-Stage Dialing Tone .....................................................................15
2.1.8 000 Is Displayed to UAP3300Agents for Incoming Calls.............................................................................15
2.1.9 When the IAD Is Connected to the IMS, the Calling Number Cannot Be Correctly Displayed on
Phones that are Connected to the IAD.........................................................................................................................16
2.1.10 Incorrect SessionTimer Setting Causes the Five-Minute Disconnection...................................................17
2.1.11 When a CHINO-E Phone Is Connected to the IAD132E(T), Sometimes the Phone Does Not Ring
Even When the Calling Number Is Displayed............................................................................................................17
2.1.12 Connecting Incoming Calls Through the FXO Port on the IAD Takes as Long as 15 Seconds............18
2.1.13 No Calling Number is Displayed on Phones Connected to the IAD132E(T)...........................................19
2.1.14 Crosstalk Occurs on Phones Connected to the IAD132E(T).......................................................................20
2.1.15 What should I do if the indicator of a phone is off when the phone is picked up? ..................................21
2.1.16 A Phone Connected to the IAD Does Not Ring for Incoming Calls ..........................................................22
2.1.17 When IAD Users Make Outgoing Calls Using the IMS, the Connection Rate Is Only 10%.................22

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2.1.18 When the IAD Is Connected to the IMS, Users Cannot Make Calls to Each Other................................23
2.1.19 When the IAD Is Directly Connected to the IMS, Blind Transfer or Transfer upon Inquiry Failed.....24
2.1.20 Calls Between IAD Users Are Disconnected Sometimes ............................................................................24
2.1.21 One-Way Voice....................................................................................................................................................25
2.1.22 No Voice................................................................................................................................................................26
2.1.23 Phones Connected to the IAD Cannot Make Calls to Numbers Starting with 800..................................27
2.1.24 No Prompt Tone Can Be Heard When a Phone Connected to the IAD Is Picked Up; When a User
Dials the Number of the Phone, an Announcement Is Played, Indicating that the Phone Is on a Call.............27
2.1.25 IAD Registration Is Successful, but Intra-Office Calls Failed ....................................................................28
2.1.26 What should I do when a phone connected to a IAD208E(M) that connects to multiple PCs cannot be
used to make calls?..........................................................................................................................................................28
2.1.27 How to deal with slow call setup?....................................................................................................................29
2.1.28 Voice Intermittence .............................................................................................................................................30
2.1.29 What should I do if no prompt tone is played upon hangup?......................................................................30
2.2 Fax and Modem Faults....................................................................................................................................................31
2.2.1 Faxes Can Be Received but Cannot Be Sent ....................................................................................................31
2.2.2 IAD Fails to Send Faxes to ZTESoftswitches.................................................................................................32
2.2.3 Fax Machines Connected to the Counter Work Improperly ...........................................................................33
2.2.4 FAX Machines Connected to the IAD Cannot Send or Receive Faxes .......................................................34
2.2.5 How to transfer remote faxes ..............................................................................................................................37
2.2.6 ModemDialing Failure ........................................................................................................................................37
2.3 Other Faults.......................................................................................................................................................................38
2.3.1 Bad AT0 Grounding ..............................................................................................................................................38
2.3.2 Port Indicator Is Off ..............................................................................................................................................39
2.3.3 Network Connection Failure ...............................................................................................................................40
2.3.4 Loading or Backing Up File Failure ..................................................................................................................41
2.3.5 PPPoE Dialing Failure..........................................................................................................................................42
2.3.6 PCs Connected to the IAD101H/102H/104H Cannot Access the Network ................................................43
2.3.7 IAD Cannot Register with the UCEMS After Startup ....................................................................................44
2.3.8 IAD208 Restarts Continually ..............................................................................................................................45
2.3.9 Frequent MG Disconnection Alarm ...................................................................................................................45
2.3.10 When the IAD Is Connected to the Local PSTN Network Through the FXO Port, an Incorrect ID
That Is Bound to the FXO Port Causes Incoming Call Exceptions ........................................................................47
2.3.11 How to Configure the VLAN Data on the IAD208 of the V300R001C03SPC800 Version ..................47
2.3.12 IAD Cannot Register with ZTE IMS Using SIP............................................................................................48
2.3.13 IAD Cannot Register with the Softswitch Using MGCP .............................................................................49
2.3.14 Card Swiping Process Takes Long Time on the POS Device Connected to the IAD208E(M) .............50
2.3.15 What should I do if the IAD fails to register with the UAP3300?..............................................................50
2.3.16 Why outgoing calls cannot be made when the IAD connects to the IMS? ...............................................51
2.3.17 Two Cascaded IAD132E(T)s Cannot Ping Each Other ................................................................................52
2.3.18 Multiple IADs Connected to the Same ONU/ONT Cannot Ping Each Other ..........................................53
2.3.19 IAD Cannot Register with the SoftX3000......................................................................................................53

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2.3.20 Port on the IAD208E(M) Is Locked.................................................................................................................54
2.3.21 Two IADs on the Same VLAN Cannot Ping Each Other, and the Phone Does Not Ring When a User
Under One IAD Makes a Call to Another User Under the Other IAD...................................................................55
2.3.22 Unable to Run Commands.................................................................................................................................56
2.3.23 Serial Port Failure................................................................................................................................................56
2.3.24 Start Slowness or Failure ...................................................................................................................................57
2.3.25 IAD Restarts for No Reason..............................................................................................................................58
2.3.26 Automatic Upgrade Failure ...............................................................................................................................58
3 Common Troubleshooting Methods....................................................................................... 60
3.1 Observing Device Indicators..........................................................................................................................................61
3.2 Collecting System Information (Web) .........................................................................................................................68
3.3 Viewing Call Failure Records........................................................................................................................................68
3.4 Checking the Network Status Automatically ..............................................................................................................69
3.5 Using the PING Command ............................................................................................................................................74
3.6 Tracing Route ...................................................................................................................................................................75
3.7 Tracing Signaling.............................................................................................................................................................76
3.8Analyzing Packets Captured by Wireshark .................................................................................................................77
3.9 Capturing the Network Packets Remotely...................................................................................................................85
3.10 Bad AT0 Grounding ......................................................................................................................................................89
3.11AT0 Ground Impedance Test........................................................................................................................................94
4 FAQs .............................................................................................................................................. 99
4.1 Query-Related FAQs.......................................................................................................................................................99
4.1.1 What Are the Default IP address, User Name, and Password Used to Log In to the IAD........................99
4.1.2 How Do I View the IPAddress of the IAD.......................................................................................................99
4.1.3 How Do I View the MAC Address of the IAD..............................................................................................100
4.1.4 How do I view the physical sequence number of the IAD..........................................................................100
4.1.5 How do I view the software version of the IAD ...........................................................................................100
4.1.6 How do I view the system information...........................................................................................................100
4.1.7 How do I view the elabel of the IAD..............................................................................................................101
4.2 Operation-Related FAQs .............................................................................................................................................101
4.2.1 How do I log in to the IAD management system..........................................................................................101
4.2.2 How Do I Log In to the IAD If I Forget the Password................................................................................101
4.2.3 How do I restore the IAD to factory settings.................................................................................................102
4.2.4 How to restart the IAD ......................................................................................................................................102
4.2.5 How do I change the IP address of the IAD...................................................................................................102
4.2.6 How do I set the upper and lower limits of the hookflash duration...........................................................102
4.2.7 How do I change the protocol mode ...............................................................................................................103
4.2.8 How do I set the VLAN priority on the IAD.................................................................................................103
4.2.9 How do I set the faxfunction on the IAD ......................................................................................................103
4.2.10 How do I enable the pulse dialing function.................................................................................................104

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About This Document
This topic describes the flows, the methods for troubleshooting typical faults of the eSpace
Integrated Access Device(IAD) and how to analyze and rectify faults.

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1 Overview
About This Chapter
This topic describes the fault severity, precautions, and troubleshooting process.
1.1 Fault Level
Depending on the impact and scope of the fault, faults are classified as either emergency
faults or ordinary faults.
1.2 Precautions
This topic describes the precautions for troubleshooting.
1.3 Troubleshooting Process
This topic describes the IAD troubleshooting process.
1.1 Fault Level
Depending on the impact and scope of the fault, faults are classified as either emergency
faults or ordinary faults.
Emergent faults refer to those that occur suddenly and affect a wide range of services or
devices. Emergency faults, such as host breakdown and service congestion, seriously affect
network operations and the quality of service (QoS).
The following faults are emergency faults:
IAD voice and fax services are unavailable.
The IAD restarts continuously.
Ordinary faults refer to those that are not emergency faults. The methods for locating and
rectifying faults and the applicable reference documents are different for emergency and
ordinary faults. For details, see Table 1-1.
Table 1-1 Methods for locating andrectifyingfaults
Fault Level
Processing Method
Reference Document
Ordinary
Locate and rectify the fault.
See the description for this
document.
Emergency
Restore the service that has
been affected as soon as
possible, and then find the
root cause of the fault.
Contact Huawei technical
support for help.

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1.2 Precautions
This topic describes the precautions for troubleshooting.
Before locating and troubleshooting faults, you must read and observe the following
precautions:
Strictly comply with the operation and industry rules and regulations to ensure safety of
personnel and devices.
Observe anti-static safety measures (for example, wear anti-static wrist straps).
Record details about all the faults that occur during maintenance.
Record all the important operations, for example, restarting a process and restoring
factory settings. An important operation must be performed by qualified operators after
the related data is backed up and proper measures are provided against security and
emergency events.
1.3 Troubleshooting Process
This topic describes the IAD troubleshooting process.
The IAD troubleshooting process involves collecting fault information, rectifying faults,
verifying fault rectification, compiling troubleshooting reports, and obtaining Huawei
technical support.
Figure 1-1 shows the troubleshooting flowchart.

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Figure 1-1 Troubleshooting flowchart
1.3.1 Collecting Fault Information
Detailed fault description helps to quickly locate faults. The scenario information, networking
information, and system information must be collected when a fault occurs.

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Scenario Information
This topic describes the fault scenario information that must be collected when a fault occurs.
Collect the following scenario information when a fault occurs:
Fault occurrence time and place
Fault symptom
Operations that were performed before the fault occurred
Measures that have been taken after the fault occurred and the results
Services that were affected by the fault and the scope of the fault
Networking Information
Networking information helps maintenance personnel to simulate the fault scenario and locate
the fault. The maintenance personnel must document and save the following onsite
information:
Physical network, including physical connections and connection media.
Device names and versions.
Logical connections between devices.
Device interconnection information, such as the VLAN, IP address, subnet, gateway, or
port of a device.
System Information
When a fault occurs, you can log in to the IAD web management system to obtain system
information described in Table 1-2. The procedure is as follows:
1. Log in to the web management system. For details, see the eSpace IAD Product
Documentation.
2. Choose Diagnose > System Information from the navigation tree on the left. The
system information page is displayed.
3. Click Download to download the system information.
Alternatively, you can view system information directly on the page.
Table 1-2 System information
Item
Description
Version
Information about software versions of the main control board
and other service boards.
IAD software version information.
IAD software version information.
Network port
information
Network port configuration information.
User registration status
For SIP services only.
Wildcard group
registration status
For SIP services only.
Registration
(For MGCP services only) MG registration status and MGC

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Item
Description
server information.
VLAN configuration
Tag configuration for various packets generated by the IAD.
Current configuration
Current userconfiguration on the device.
Alarm history
Latest 10 alarms. To view more alarm information, view
downloaded files.
For details about how to query other system information, see the eSpace IAD Product Documentation.
1.3.2 Determining the Fault Category
Upon receiving fault information, determine whether the fault is an emergency fault. If the
fault is emergent, contact Huawei technical support. If the fault is not emergent, locate and
rectify the fault according to this document.
1.3.3 Locating and Rectifying a Fault
Troubleshooting refers to locating faults using fault locating methods provided by devices and
rectifying the faults using various methods such as maintaining cables, replacing components,
and modifying configuration data.
The procedure for locating a fault is as follows:
1. Verify that the fault is a peripheral fault.
2. Verify that the fault is an IAD hardware fault.
3. Verify that the fault is a network fault.
4. Verify that the fault is a service fault.
For details, see the commoncases.
1.3.4 Verifying Fault Rectification
After taking measures to rectify a fault, verify that the fault is rectified.
If the fault is rectified, compile a troubleshooting report. If the fault is not rectified, contact
Huawei technical support engineers..
1.3.5 Contacting Technical Support
Huawei Technologies Co., Ltd. provides customers with comprehensive technical support and
service. Please feel free to contact our local office orcompany headquarters.
Huawei Technologies Co., Ltd.
Address: Administration Building, Huawei Technologies Co., Ltd., Bantian, Longgang
District, Shenzhen, P. R. China
Postal Code: 518129
Website: http://www.huawei.com

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Email: [e-mail]
1.3.6 Compiling a Troubleshooting Report
After verifying that a fault is rectified, record the fault rectification process andcompile a
troubleshooting report for future reference.
The troubleshooting report should include: fault symptom, fault location, fault rectification,
and preventive suggestions.

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2 Analyzing and Rectifying Faults
About This Chapter
2.1 Call Faults
2.2 Fax and Modem Faults
2.3 Other Faults
2.1 Call Faults
2.1.1 IAD Phone One-Way Audio Caused by the Defense Against
UDP Flood Attacks
Symptom
When a user under the IAD makes a call to an onsite mobile phone user, the mobile phone
user cannot hear the calling party's voice for several seconds. This fault occurs when the
traffic is high.
Network:
IAD user-IAD-SBC-UMG
Cause
The defense against UDP Flood attacks is enabled for the SBC.
Solution
Step 1 Capture packets on the IAD, between the IAD and the SBC, and between the SBC and the
UMG.
Step 2 Analyze the captured packets.
The packets from the IAD are normal; however, packet loss occurs during the transmission
between the SBC and the UMG. The defense against UDP Flood attacks is enabled for the

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SBC. UDP packets bear the voice packets. When the traffic is high, the SBC discards the UDP
packets that bear voice packets. Then one-way audio occurs.
Step 3 Disable the defense against UDP Flood attacks for the SBC.
Step 4 Check whether the fault is rectified.
If yes, the procedure ends.
If no, go to Step 5.
Step 5 Contact Huawei technical support.
----End
2.1.2 Voice Tremble Occurs During IAD Calls
Symptom
Voice tremble occurs during IAD calls.
Cause
Phone fault
Poor bearer network performance that causes the packet loss between the IAD and the
peer gateway device
Incorrectconfiguration for the Ethernet port on the IAD upper-level switch
Solution
Step 1 Change a phone, and checkwhether the fault is rectified.
If yes, the procedure ends.
If no, go to Step 2.
Step 2 Ping the peer gateway device on the IAD to verify the network performance. If the delay time
is less than 40 ms, and no packet loss occurs, the bearer network performance is good.
Step 3 Verify that each device that the media stream passes is configured to the full-duplex mode.
If a device is configured to the full-duplex mode, and the other device is configured to the
automatic adaptive mode, the working mode may become half-duplex after negotiation, which
affects the voice quality. You can configure the working mode to the full-duplex at a speed of
100 Mbit/s.
Step 4 Check whether the fault is rectified.
If yes, the procedure ends.
If no, go to Step 5.
Step 5 Contact Huawei technical support.
----End

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2.1.3 Busy Tone When Picking Up or Dialing a Number
Symptom
Beeps occur on phonesconnected to the IAD. Users cannot dial numbers.
Auser always hears the busy tonewhen dialing a number.
Cause
The user is not registered with the softswitch.
The called number does not exist.
The short-circuit occurs.
The IAD is faulty.
The mapping between the cable sequence and ports is incorrect.
Solution
Step 1 Ping the softswitch IP address on the IAD.
If the softswitch can be pinged, go to Step 2.
If it cannot be ping through, check whether the network cable is well plugged (ensure
that the uplink cable is plugged in the WAN port of the IAD).
Step 2 Run the display protocol-mode command to view the protocol used by the IAD.
Step 3 For SIP services, run the display sip digitmap command to query the digitmap configuration.
TERMINAL(config)#display sip digitmap
If the default digitmap [XABCD*#].T is deleted and other digitmaps are not configured, you
cannot initiate any calls. For details about how to configure digitmaps, see the product
document.
Step 4 View the user registration status.
For MGCP services, run the display mgcp attribute command to view the user
registration status.
For SIP services, run the display sip attribute all command to view the user registration
status.
Step 5 If the user is not registered with the softswitch, verify that the account of the user is enabled
on the softswitch and is configured correctly on the IAD.
For SIP services, you can query the attribute configuration of the SIPservices as follows:
−If the registration fails, checkwhether the data of the user is configured on the
softswitch.
−If the user ID or password is inconsistent with that on the softswitch, run the sip user
command toconfigure the information.
−If the IP address of the SIP serverconfigured on the IAD is incorrect, run the sip
serverindexaddressipaddress command to configure the information.
For MGCP services, youcan query the attribute configuration of the MGCP services as
follows:
−If the IP address or domain name of the MGC (registration server) is not configured,
run the mgcp mgcindexaddressipaddress command to configure the information. For

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example, if the IP address of the active MGC is 192.168.10.10, the operations are as
follows:
TERMINAL(config)#mgcp mgc 1 address 192.168.10.10
−If the MG domain name is not the same as that set on the MGC server, run the mgcp
mg-domain-namedomain-name command to set the MG domain name again.
−The interval for the IAD to register with the MGC may be too long after reboot (70s
by default), you can run the mgcp protocol mwd-valtimer command to decrease the
registration waiting interval. For example, run the following command to set the
interval to 20s:
TERMINAL(advanced-config)#mgcp protocol mwd-val 20
−Ensure that the authentication methods of the IAD and the MGC are consistent. If the
authentication methods are inconsistent, run the mgcp authentication command in
the global configuration mode to configure the authentication method.
Step 6 Check whether the mapping between the cable sequence and ports is correct. For details, see
the product documentation.
If no, reconnect cables.
If yes, go to Step 7.
Step 7 Run the display pstnport state command to query theworking status of the port.
For example, to query the user of port 0 on the IAD132E(T), the operations are as follows:
TERMINAL#display pstnport state 0 /*If the por t number is no t specifi ed, all ports are
queried.*/
--------------------------------------
Port PortType State
--------------------------------------
0 FXS IDLE
/*FXS is the port for SIP users, FXO is the port for PSTN users. State IDLE indicates
that the port is in idle state. If the state is BUSY, it indicates that the port is
occupied.*/
For IAD132E(T), ifthe IAD has 8 FXO ports and 24 FXSports (OSU board +ASID board) and all the 8
FXO ports are configured with the private lines of the 8 FXSports of the IAD, the other 16 FXS users
cannot initiate outgoing calls on the host. In this case, you are advised to set a maximum of 7 private
lines.
Step 8 Run the display dsp-channel command to query the configuration information such as DSP
port status and send/receive gains.
Step 9 Run the display dsp-chip command to check whether the DSP chip is in normal state. If the
DSP chip is damaged, return the IAD to the factory for repairing.
Step 10 Check whether the pickup event is correctly reported and whether the softswitch responses.
For details, see Tracing Signaling.
Step 11 Configure the original IAD according to the configuration data on an IAD that is running
properly, and checkwhether the fault is rectified.
If yes, the IAD is not faulty.
If no, go to Step 12.
Step 12 Contact Huawei technical support.

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----End
2.1.4 Phones Connected to the IAD Can Ring but Nothing Is
Heard After Pickup
Symptom
When outer-office user Adials IAD user B, user B's phone rings, and user Acan hear the RBT.
However, user B cannot hear user A's voice after user Bpicks up the phone.
Cause
The signaling carries events that the IAD does not support.
Solution
Step 1 Capture packets on the faulty IAD.
Step 2 Analyze the packetscaptured on the faulty IAD. Check whether the IAD sends a 518 error
code to the softswitch.
The IAD does not support softswitch messages that contain FXR/T38 events. Common MDCX
messages do not contain FXR/T38 events.
If yes, change the T38 mode to transparent transmission mode for the softswitch.
If no, go to Step 3.
Step 3 Contact Huawei technical support.
----End
2.1.5 Phones Connected to IAD Cannot Make Calls to Fixed-Line
Phones in a Specified Province
Symptom
Phones connected to IAD cannot make calls to fixed-line phones in a specified province but
can make calls to fixed-line phones in other provinces. Fixed-line phones in the province can
make calls to phones connected to IAD properly.
Network:
POTS-A-IAD-ZTE NGN
Cause
Network exceptions
Incorrect digitmap configuration on the softswitch
Solution
Step 1 Check whether the IAD is properly registered with the softswitch.

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If yes, go to Step 5.
If no, go to Step 2.
Step 2 Check whether the network is disconnected.
If yes, rectify the network fault.
If no, go to Step 3.
Step 3 Run the display sip attribute command to view the IAD protocol mode.
Step 4 (For SIP mode only) Run the display sip attribute command to view the digit-map position
value.
If the digitmap of the softswitch is used, the softswitch sends the digitmap to the IAD in
the 200 OK message. Check whether the digitmap delivered by the softswitch is correct,
as shown in Figure 2-1.
−If no, modify the digitmap configuration on the softswitch.
−If yes, go to Step 6.
Figure 2-1 Digitmap delivered by thesoftswitch using SIP
Step 5 (For MGCP mode only) Capture packets to view the digitmap of the softswitch in the MGCP
mode.
The softswitch sends the digitmap to the IAD in the RQNT message, as shown in Figure 2-2.
If the number length in the digitmap is configured to 11 digits, but the called number consists
of 12 digits, only 11 digits of the called number are reported. Therefore, an incorrect number
is reported. Check whether the digitmap is correct.
If no, modify the digitmap configuration on the softswitch.
If yes, go to Step 6.

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Figure 2-2 Digitmap delivered by thesoftswitch using MGCP
Step 6 Contact Huawei technical support.
----End
2.1.6 A User Cannot Hear Other's Voice on the Phone Connected
to IAD After 5 to 10 Minutes
Symptom
When a user uses a phoneconnected to IAD to talk with others, the user cannot hear others'
voice after 5 to 10 minutes. Other users can hear the user's voice.
Cause
Phone fault
Peer device fault
Solution
The IAD configuration is correct when only one user encounters theproblem.
Step 1 Change a phone, and checkwhether the fault is rectified.
If yes, the procedure ends.
If no, go to Step 2.
Step 2 Check the peer device.
Step 3 Check whether the fault is rectified.
If yes, the procedure ends.
If no, go to Step 4.
Step 4 Contact Huawei technical support.
----End

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2.1.7 POTS Phone Users Cannot Hear the Two-Stage Dialing
Tone
Symptom
Users that use POTS phones connected to the IAD cannot hear the two-stage dialing tone.
Cause
No two-stage dialing function for the office route corresponding to the SoftCo
Inconsistency between the prefix in the number reported by the IAD and the prefix on
the SoftCo
Early IAD version
Solution
Step 1 Run the show office selectcode noxcommand to check whether the two-stage dialing
function is enabled for office direction xcorresponding to the SoftCo.
If no, enable the function.
If yes, go to Step 2.
Step 2 Check whether the prefix on the SoftCo maps the digitmap configured on the IAD.
If no, modify the configuration on the IAD. Assume that the prefix is 99 on the SoftCo,
the 99 digitmap must be added on the IAD. Ensure that the minimum length of outgoing
numbers corresponding to the prefix on the SoftCo is 0.
If yes, go to Step 3.
Step 3 Check whether the IAD version is V300R001C03SPC800 or later.
Only V300R001C03SPC800 and later versions support the two-stage dialing function.
If no, upgrade the IAD version to the latest version. For details, see IAD upgrade guide.
If yes, go to Step 4.
Step 4 Contact Huawei technical support.
----End
2.1.8 000 Is Displayed to UAP3300 Agents for Incoming Calls
Symptom
The PSTN analog trunk is connected to the FXO port on the OSU board of the IAD132E(T).
The original number of the analog trunk is 58836176. The access code of the UAP/CTI is
4006113006. Auser can dial the original number or the access code. After dialing the access
code, the user is connected to the IVR where the user can select the agent service. If the user
dials the access code, 000 is displayed to the agent.
Network: PSTN analog trunk-IAD132E(T)-UAP3300