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Zte ZXA10 C300 Manual

Zte ZXA10 C300 Manual

Epon optical access convergence equipment
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ZXA10 C300
EPON Optical Access Convergence
Equipment
Alarms Manual
Version 1.1
ZTE CORPORATION
NO. 55, Hi-tech Road South, ShenZhen, P.R.China
Postcode: 518057
Tel: (86) 755 26771900
Fax: (86) 755 26770801
URL: http://ensupport.zte.com.cn
E-mail: support@zte.com.cn

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  • Page 1 ZXA10 C300 EPON Optical Access Convergence Equipment Alarms Manual Version 1.1 ZTE CORPORATION NO. 55, Hi-tech Road South, ShenZhen, P.R.China Postcode: 518057 Tel: (86) 755 26771900 Fax: (86) 755 26770801 URL: http://ensupport.zte.com.cn E-mail: support@zte.com.cn...
  • Page 2 The contents of this document are protected by copyright laws and international treaties. Any reproduction or distribution of this document or any portion of this document, in any form by any means, without the prior written consent of ZTE CORPO- RATION is prohibited.

  • Page 3: Table Of Contents

    ONU Errored Frame Period Event ........27 ONU Errored Frame Period Event ........28 ONU Errored Frame Seconds Summary Event ....28 ONU Uplink Bit Error ............29 ONU Uplink Frame Error ..........29 ONU Optical Power Threshold Crossing ......30 Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 4 HP TU LOM ..............50 TU-LOP ................50 TU LOM ................51 TU-AIS.................51 LP TIM .................52 LP UNEQ ..............52 LPRDI ................53 LP PLM .................54 System Alarms ..........55 Cold Startup Notification..........55 Active/Standby Card Switchover Notification .....56 Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 5 Fan Fault Alarm .............65 Over-voltage Power Alarm ..........66 Under-voltage Power Alarm..........66 NO Input Power Alarm............67 High Temperature Card Alarm .........67 CCM Notification ............68 Figures ............69 Tables ............. 71 Index .............. 73 Glossary ............75 Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 6 ZXA10 C300 Alarms Manual This page is intentionally blank. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 7: Preface

    ZXA10 C300 EPON Optical Access Convergence Equipment. Intended This document is intended for engineers and technicians who Audience perform operation and maintenance activities of the ZXA10 C300 EPON Optical Access Convergence Equipment. Prerequisite Skill To use this document effectively, users should have a general un- and Knowledge derstanding of network technology.
  • Page 8 ZXA10 C300 Alarms Manual � ZXA10 C300 (V1.1) EPON Optical Access Convergence Equip- ment Command Manual (Volume I) � ZXA10 C300 (V1.1) EPON Optical Access Convergence Equip- ment Command Manual (Volume II) � ZXA10 C300 (V1.1) EPON Optical Access Convergence Equip- ment Command Manual (Volume III) �...
  • Page 9 RoHS Compliance to the earth we live, this document shall serve as formal declara- tion that ZXA10 C300 manufactured by ZTE CORPORATION is in compliance with the Directive 2002/95/EC of the European Parlia- ment - RoHS (Restriction of Hazardous Substances) with respect to the following substances: �...
  • Page 10 ZXA10 C300 Alarms Manual This page is intentionally blank. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 11: Introduction

    Notifications are defined by the system and cannot be modified. If the user wants to modify a notification to a higher alarm level, contact the ZTE technical support engineers. Alarm List Table 3 provides the ZXA10 C300 alarm list. Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 12 Deny unknown ONU register Notification 43062 ONU request auto config Notification CES Service Alarm 36865 Critical interface 36866 TDM interface Critical 36867 local alarm Major 36868 PW remote alarm Critical 36869 Critical 36870 Critical 36871 Critical Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 13 Notification Notification 33035 overload alarm Minor 33036 Memory overload alarm Minor 33037 Card status error alarm Critical 34816 Terminal log in notification Notification 34817 Terminal log out notification Notification 34818 heartbeat notification Notification Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 14: Alarm Configuration

    Setting Alarm Preferences � Customizing Alarm Levels � Setting Alarm Maintenance Suggestions � Setting Alarm Rules � Setting the Alarm Threshold Setting Alarm Preferences Short Description Perform this procedure to set alarm preferences. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 15: Figure 1 Alarm Sound Setup

    1. Choose View > Fault Management to open the Fault Man- agement interface. 2. In the Fault Management interface, choose Setting > Pref- erences. The Preferences interface appears, as shown in Figure IGURE LARM OUND ETUP Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 16: Figure 2 Alarm Color Setup

    4. Click the Alarm Color Setup tab to set the color for each alarm level, as shown in Figure IGURE LARM OLOR ETUP 5. Click the Forward Template Setup tab to set the forwarding message and mail text style, as shown in Figure Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 17: Customizing Alarm Levels

    NMS manages ZXA10 C300 properly. Context Modify the alarm levels corresponding to the alarm codes to modify the alarm levels of the ZXA10 C300. To customize the alarm levels, perform the following steps: Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 18: Figure 4 New Severity

    4. To modify the level of an alarm, select the alarm. In the New Severity column, select a new severity, as shown in Figure IGURE EVERITY 5. In the Modify Status column, a check appears, as shown in Figure Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 19: Setting Alarm Maintenance Suggestions

    1. Choose View > Fault Management to open the Fault Man- agement interface. 2. In the Fault Management interface, choose Setting > Main- tenance Suggestion Setting to open the Maintenance Sug- gestion Setting interface, as shown in Figure Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 20: Figure 6 Maintenance Suggestion Setting

    System Type drop-down list. 4. All the NMS alarm maintenance suggestions based on ZTE can be imported into one another as long as the alarm code definition consistent are consistent.

  • Page 21: Setting Alarm Rules

    Rule Setting to open the Management Rule Set- ting interface, as shown in Figure IGURE ANAGEMENT ETTING 3. In the Management Rule Setting interface, select a rule type. Right–click the rule type and select the operation. ND OF STEPS Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 22: Setting The Alarm Threshold

    > Perf Alarm Management. The Perf threshold ad- min interface appears, as shown in Figure IGURE HRESHOLD DMIN 2. Click Add. The Add Threshold interface appears, as shown Figure 10 A IGURE ERFORMANCE HRESHOLD Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 23: Figure 11 Perf Threshold Admin

    Click OK. The added performance threshold is displayed in the Perf threshold admin interface, as shown Figure 11 P IGURE ERF THRESHOLD ADMIN ND OF STEPS Result The alarm threshold is set successfully. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 24: Real-Time Monitoring

    To implement the real-time alarm monitoring, perform the follow- ing steps: Steps 1. On the NMS Client, choose View > Fault Management to open the Fault Management tab and the Realtime Alarms tab, as shown in Figure Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 25: Real-Time Event Monitoring

    2. Choose Management View > Realtime Event Monitor to open the Realtime Events tab, as shown in Figure 13. The Realtime Events tab displays only the events that occur after the tab is opened. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 26: Real-Time Notification Monitoring

    2. Choose Management View > Realtime Notification Mon- itor to open the Realtime Notifications tab, as shown in Figure 14. The Realtime Notifications tab displays only the notifications that occur after the tab is opened. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 27: Alarm Information Query

    Querying Events � Querying Notifications Querying Current Alarms Short Description Perform this procedure to query the current alarms. Prerequisites The user has logged in to the and the NMS manages ZXA10 C300 properly. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 28: Figure 15 Current Alarm Query Conditions

    LARM UERY ONDITIONS 3. On the Current Alarm Query Conditions tab, click the Quick Search button on the tool bar to display the Quick Cur- rent Alarm dialog box, as shown in Figure Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 29: Querying History Alarms

    UERY URRENT LARM 4. In the Query Current Alarm dialog box, select the query con- dition. For example, select ZXA10 C300 (v1.0) for System Type. Then, click OK to view the query result. ND OF STEPS Result Current alarm query is complete.

  • Page 30: Figure 17 History Alarm Query Conditions

    UERY ISTORY LARM 4. In the Query History Alarm dialog box, select the querying condition. For example, select ZXA10 C300 (v1.0) for System Type. Then, click OK to view the query result. ND OF STEPS Result History alarm query is complete.

  • Page 31: Collecting History Alarm Statistics

    List of Report Templates tab, as shown Figure 19 H — R IGURE ISTORY LARM TATISTICS EPORT ANAGEMENT 3. Right-click a line and choose Preview Report or Export to Excel, as shown in Figure Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 32: Querying Events

    > View Events to open the Event Query Conditions tab. 3. On the Event Query Conditions tab, click the Quick Search button on the tool bar to display the Query Event dialog box, as shown in Figure Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 33: Querying Notifications

    IGURE UERY VENT 4. In the Query Event dialog box, select the querying condi- tions. For example, select ZXA10 C300 (v1.0) for System Type. Then, click OK to view the querying result. ND OF STEPS Result Event query is complete.

  • Page 34: Figure 22 Query Notification

    IGURE UERY OTIFICATION 4. In the Query Notification dialog box, select the querying con- ditions. For example, choose the ZXA10 C300 (v1.0) for Sys- tem Type. Then click OK to view the query result. ND OF STEPS Result Notification query is complete.

  • Page 35: Epon Service Alarms

    2. Check whether the optical output power of the optical module on the card is normal. If not, replace optical module or the PON card. 3. If the alarm still exists, contact the technical support personnel for assistance. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 36: Pon Los

    The OLT detects the number of the downstream error notations at the physical layer of the ONU in a period of time. When the number exceeds the threshold, the system generates the alarm. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 37: Onu Errored Frame Period Event

    3. Check whether the optical fiber and optical module are aging. If yes, replace the optical fiber and optical module. 4. If the alarm still exists, contact the technical support personnel for assistance. Result The alarm disappears. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 38: Onu Errored Frame Period Event

    If yes, rearrange and insert the optical fiber well. 2. Check whether the attenuator is suitable. If not, replace the attenuator. 3. Check whether the optical fiber and optical module are aging. If yes, replace the optical fiber and optical module. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 39: Onu Uplink Bit Error

    1. Check whether the optical fiber between the ONU uplink and port is well inserted. If not, insert it well. 2. If the alarm still exists, contact the technical support personnel for assistance. Result The alarm disappears. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 40: Onu Optical Power Threshold Crossing

    2. Check whether the optical fiber between the ONU uplink and port is faulty. If yes, rearrange the fiber or replace the fiber. 3. Check whether the ONU power module is damaged. If yes, replace the power module or the whole ONU. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 41: Onu Dying Gasp

    Impact on System is disconnected during initiation and the service is not available. Possible Causes is restarted. Troubleshooting No need to handle it. The service recovers after the ONU is restarted. Result The alarm disappears. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 42: Local Onu Configure Failed (Olt)

    Remove the VoIP user phone set. User hook-off The VoIP user phone set is hooked off. User hook-on The VoIP user phone set is hooked on. User line is faulty The VoIP user line is faulty. Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 43 The voltage of ONU The ONU detects that the voltage of the optical module is higher ONU optical module is higher than the high than the high alarm alarm threshold. threshold. Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 44 ONU optical module is higher sends is higher than the than the low alarm threshold. low alarm threshold. ONU optical module A normal notification is raised. sends optical power normally. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 45: Extended Oam Discovery Failed (Onu)

    Repair the ONU or replace the ONU. If the ONU type is not supported, replace the ONU type. � 2. If the alarm still exists, contact the technical support personnel for assistance. Result The alarm disappears. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 46: Unknown Onu Online

    43055 Notification Communication alarm Impact on System None Possible Causes Illegal registration fails. Troubleshooting Check whether the ONU is illegal. If yes, contact the technical support personnel for assistance. Result The alarm disappears. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 47: Onu Request Auto Config

    Communication alarm Impact on System None Possible Causes The auto-configuration request is enabled. When an unknow ONU is online, the NM configures the ONU with the default template. Troubleshooting None Result The alarm disappears. Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 48 ZXA10 C300 Alarms Manual This page is intentionally blank. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 49: Ces Service Alarms

    Impact on System It leads to CESoP service interruption. Possible Causes The fault may be caused by the following: � The PDH cable is incorrectly connected. � The opposite-end device does not send electrical signals. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 50: Pdh Interface Ais Alarm

    ZXA10 C300 Alarms Manual Troubleshooting To handle the fault, perform the following steps: 1. Check whether ZXA10 C300 is well connected with the periph- eral cables. If not, reconnect the cables. 2. Check whether the hardware is faulty. If the circuit simulated...

  • Page 51: Pw Local Alarm

    Troubleshooting To handle the fault, perform the following steps: 1. Check whether ZXA10 C300 is well connected with the op- posite-end device. If not, reconnect the cables and check whether the system generates the local recovery alarm.

  • Page 52: Optical Interface Los Alarm

    If protection is configured, service protection is enabled and the services are transferred to the protected optical interface. Other- wise, service interruption is caused. Possible Causes The fault may be caused by the following: � The optical line card is faulty. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 53: Out Of Frame Alarm

    Replace the optical line or the main control card where the faulty NE exists. 3. If the alarm still exists, contact the technical support personnel for assistance. Result The alarm disappears. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 54: Ms-Ais

    2. Check whether the local device sends signals normally. Make sure that the local device works properly. 3. If the alarm still exists, contact the technical support personnel for assistance. The alarm disappears. Result Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 55: Rs Sf

    2. Check whether the optical line card and the main control card on the receiving and the transmitting ports are normal. Re- place the cards if they are faulty. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 56: Au-Lop

    Critical Fault alarm Impact on System It may lead to service interruption. Possible Causes The fault may be caused by the following: � The high-level time slot cross on the uplink node fails. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 57: Hp Tim

    Make sure that they are consistent. 3. If the alarm still exists, contact the technical support personnel for assistance. Result The alarm disappears. HP UNEQ Alarm Description When the system detects HP UNEQ, the system generates this alarm. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 58: Hprdi

    The node optical signal or AU transmission is abnormal. Troubleshooting To handle the fault, perform the following steps: 1. Check whether the uplink device receives the multiplex section or AU-level alarm. If yes, handle the fault. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 59: Hp Plm

    The fault may be caused by the following: � signal source is faulty. � The high-level time slot cross on the uplink node fails. Troubleshooting To handle the fault, perform the following steps: Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 60: Hp Tu Lom

    The fault may be caused by the following: � The main control card is improperly inserted. � The main control card fails to work properly. Troubleshooting To handle the fault, perform the following steps: Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 61: Tu Lom

    The fault may be caused by the following: � The TU signal source is faulty. � The low-level time slot cross on the uplink node fails. Troubleshooting To handle the fault, perform the following steps: Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 62: Lp Tim

    Make sure that they are consistent. 3. If the alarm still exists, contact the technical support personnel for assistance. Result The alarm disappears. LP UNEQ Alarm Description When the system detects LP UNEQ, the system generates this alarm. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 63: Lprdi

    The local node TU or AU transmission is abnormal. Troubleshooting To handle the fault, perform the following steps: 1. Check whether the uplink device receives the HP or TU-level alarm. If yes, handle the fault. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 64: Lp Plm

    If not, keep them consistent. Check whether the LP PLM alarm is cleared. 2. If the alarm still exists, contact the technical support personnel for assistance. Result The alarm disappears. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 65: System Alarms

    Under-voltage Power Alarm ..........66 NO Input Power Alarm............67 High Temperature Card Alarm ..........67 CCM Notification ..............68 Cold Startup Notification When cold startup is implemented on ZXA10 C300, the system Alarm Description generates the notification. Alarm Property Alarm ID Alarm Level...

  • Page 66: Active/Standby Card Switchover Notification

    The fault may be caused by the following: � The standby card fails to copy data from the active card. � The backplane is disconnected. Troubleshooting To handle the fault, perform the following steps: Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 67: Cpu Overload Alarm

    Alarm ID Alarm Level Alarm Type 33036 Warning Fault alarm Impact on System The device fails to run properly. Possible Causes The memory usage is too high or the threshold is too low. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 68: Card Status Error Alarm

    If not, update the line card version. 5. Replace the faulty card. 6. If the alarm still exists, contact the technical support personnel for assistance. The alarm disappears. Result Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 69: Terminal Login Notification

    Chapter 4 System Alarms Terminal Login Notification Alarm Description When the terminal device logs in to ZXA10 C300 through a console port or the out-of-band NMS, the system generates this notifica- tion. Alarm Property Alarm ID Alarm Level Alarm Type...

  • Page 70: Mac Table Utilization Exceeding Threshold Notification

    MAC addresses to accelerate the aging progress of the MAC addresses. 3. If the alarm still exists, contact the technical support personnel for assistance. Result The usage of the MAC table is lower than the threshold. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 71: Card Version Update Failure Alarm

    The service on this uplink port is interrupted. Possible Causes The physical line on the uplink port is faulty. The network cable or the optical fiber is improperly connected. Troubleshooting To handle the fault, perform the following steps: Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 72: Access Port Up Notification

    2. If the alarm still exists, contact the technical support personnel for assistance. Result The alarm disappears. Access Port Up Notification Alarm Description When the link is connected on the ZXA10 C300 port, the sys- tem generates this notification. Alarm Property Alarm ID Alarm Level...

  • Page 73: Uplink Port Output Bandwidth Occupancy Exceeding Threshold Alarm

    The alarm disappears. Uplink Port Output Bandwidth Occupancy Exceeding Threshold Alarm Alarm Description When the output bandwidth of the ZXA10 C300 uplink optical port exceeds the threshold, the system generates this notification. Alarm Property Alarm ID Alarm Level Alarm Type...

  • Page 74: Uplink Port Input Bandwidth Occupancy Exceeding Threshold Alarm

    ZXA10 C300 Alarms Manual Uplink Port Input Bandwidth Occupancy Exceeding Threshold Alarm Alarm Description When the input bandwidth of the ZXA10 C300 uplink optical port exceeds the threshold, the system generates this notification. Alarm Property Alarm ID Alarm Level Alarm Type...

  • Page 75: Fan Card Link Down Alarm

    Fault alarm Impact on System The fan fault affects the system ventilation and leads to tem- perature rising, which may affect the system service and damage the NE. Possible Causes The fan is damaged. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 76: Over-Voltage Power Alarm

    The system fails to work normally. Possible Causes The power hardware is faulty. Troubleshooting To handle the fault, perform the following steps: 1. Check whether the equipment input voltage is within the nor- mal range. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 77: No Input Power Alarm

    The high temperature threshold is set improperly. � The fan is damaged. Troubleshooting To handle the fault, perform the following steps: 1. Check whether the high temperature threshold is set properly. If not, modify the threshold. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 78: Ccm Notification

    To handle the fault, perform the following steps: 1. Make sure that the physical connection is normal. 2. If the alarm still exists, contact the technical support personnel for assistance. Result The CCM is normal. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 79: Figures

    Figure 18 Query History Alarm ..........20 Figure 19 History Alarm Statistics — Report Management ..21 Figure 20 History Alarm Statistics — List of Report Templates...22 Figure 21 Query Event ............23 Figure 22 Query Notification..........24 Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 80 ZXA10 C300 Alarms Manual This page is intentionally blank. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 81: Tables

    Tables Table 1 Typographical Conventions ........II Table 2 Mouse Operation Conventions ........III Table 3 ZXA10 C300 Alarm List..........2 Table 4 Button Description ..........10 Table 5 Parameter Description for Added Performance Threshold ............13 Table 6 Fault Analysis For ONU Optical Module Diagnostic Parameter Alarm ..........32...
  • Page 82 ZXA10 C300 Alarms Manual This page is intentionally blank. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 83: Index

    Period Event ....26 ONU Offline ...... 30 ONU Optical Power Fan Card Link Down Threshold Crossing ... 30 Alarm ......65 ONU Request Auto Fan Fault Alarm ....65 Config ......37 Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 84 Setting Alarm Preferences ..5 Setting Alarm Rules ... 11 Setting the Alarm Threshold......12 Terminal Login Notification...... 59 Terminal Logout Notification...... 59 TU LOM ......51 TU-AIS......51 TU-LOP ......50 Under-voltage Power Alarm ......66 Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 85: Glossary

    - Medium Access Control - Maintenance association End Point - Maintenance domain Intermediate Point - Multiplex Section MS-AIS - Multiplex Section - Alarm Indication Signal MS-RDI - Multiplex Section - Remote Defect Indication Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 86 - Synchronous Transport Module - Time Division Multiplexing - Trace Identifier Mismatch - Tributary Unit TU-AIS - Tributary Unit Alarm Indication Signal TU-LOP - Tributary Unit-Loss of Pointer UNEQ - UN-Equipped - Unified Network Management Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 87 Glossary VoIP - Voice over Internet Protocol Confidential and Proprietary Information of ZTE CORPORATION...

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