| Code | Message | Memo |
| BackMsg_01 | Parameters can not be empty | |
| BackMsg_02 | Team identity string error or doesn't exist | |
| BackMsg_03 | Agent no. error or doesn't exist | |
| BackMsg_04 | Login success | |
| BackMsg_05 | Agent account is disabled | |
| BackMsg_06 | Agent account doesn't exist | |
| BackMsg_07 | Wrong password | |
| BackMsg_08 | Logout success | |
| BackMsg_09 | Agent no. doesn't exist[Agent No.] | |
| BackMsg_10 | Failed to switch queue status | |
| BackMsg_11 | Agent group id doesn't exist[Agent group id] | |
| BackMsg_12 | Agent doesn't exist | |
| BackMsg_13 | Parameter type error | |
| BackMsg_14 | Switch agent status sucess | |
| BackMsg_15 | Account doesn't exist | |
| BackMsg_16 | Call failed, agent doesn't login | |
| BackMsg_17 | Call failed, agent status is [agent status], if agent status is empty, check BackMsg_16 | |
| BackMsg_18 | Call failed, agent has call limitation | |
| BackMsg_19 | Call success | |
| BackMsg_20 | Call failed | |
| BackMsg_21 | Consult failed | |
| BackMsg_22 | There's an ongoing dial request | |
| BackMsg_23 | Agent doesn't bind a phone, failed to dial | |
| BackMsg_24 | Agent not found, failed to dial | |
| BackMsg_25 | The consulted agent is not login | |
| BackMsg_26 | Failed to create consulted party | |
| BackMsg_27 | Consult success | |
| BackMsg_28 | Parameters error | |
| BackMsg_29 | Transfer failed | |
| BackMsg_30 | Agent ground doesn't exist | |
| BackMsg_31 | Transfer success | |
| BackMsg_32 | Callback success | |
| BackMsg_33 | Callback failed | |
| BackMsg_34 | Conference success | |
| BackMsg_35 | Conference failed | |
| BackMsg_36 | Hangup failed | |
| BackMsg_37 | Hangup success | |
| BackMsg_38 | No account for current agent | |
| BackMsg_39 | Barge-in success | |
| BackMsg_40 | Barge-in failed | |
| BackMsg_41 | Spy success | |
| BackMsg_42 | Spy failed | |
| BackMsg_43 | Get record success | |
| BackMsg_44 | Get record failed, no record match | |
| BackMsg_45 | You are not allowed to hangup the current call | |
| BackMsg_46 | Hangup success | |
| BackMsg_47 | Hangup failed | |
| BackMsg_48 | Whisper success | |
| BackMsg_49 | Whisper failed | |
| BackMsg_50 | No agent group for default team | |
| BackMsg_51 | Call pause failed | |
| BackMsg_52 | Call pause success | |
| BackMsg_53 | Call un-pause failed | |
| BackMsg_54 | Call un-pause success | |
| BackMsg_55 | Agent no. error or doesn't exist | |
| BackMsg_56 | Consult failed, agent status is [status] | |
| BackMsg_57 | No agent group to login | |
| BackMsg_58 | Agent didn't login to any agent group | |
| BackMsg_59 | ACW mode switch success | |
| BackMsg_60 | Agent is not login or doesn't belongs to the agent group | |
| BackMsg_61 | ACW exit success | |
| BackMsg_62 | Workway switch success | |
| BackMsg_63 | Try use “usertype=account” method, but account doesn't exist or wrong password | |
| BackMsg_64 | Call channel doesn't exist | |
| BackMsg_65 | The agent is not group admin | |
| BackMsg_66 | Agent is in pause | |
| BackMsg_67 | Campaign id error | |
| BackMsg_68 | Not group admin | |
| BackMsg_69 | Campaign data imported | |
| BackMsg_70 | Wrong modeltype or model_id | |
| BackMsg_71 | context should not be empty | |
| BackMsg_72 | Wrong parameter source | |
| BackMsg_73 | Campaign doesn't exist | |
| BackMsg_74 | File title doesn't match table structure | |
| BackMsg_75 | Failed to generate SQL because wrong parameter “context” | |
| BackMsg_76 | Column missing in file: field name | |
| BackMsg_77 | Reset customer status success | |
| BackMsg_78 | Update customer data success | |
| BackMsg_79 | Reset customer agent success | |
| BackMsg_80 | Insert to dial list success | |
| BackMsg_81 | Duplicated record | |
| BackMsg_82 | Duplicated phone number | |
| BackMsg_83 | New customer imported and inserted to dial list | |
| BackMsg_84 | New customer imported | |
| BackMsg_85 | File storage error | |
| BackMsg_86 | File format has to be CSV | |
| BackMsg_87 | Failed to create import job | |
| BackMsg_88 | Failed to upload file | |
| BackMsg_89 | Failed to download remote file | |
| BackMsg_404 | File doesn't exist | |
| BackMsg_90 | Agent is not in ACW mode, failed to exit ACW | |
| BackMsg_91 | Failed to switch work way, agent is not login or agent group doesn't exist or agent doesn't belongs to this group | |
| BackMsg_92 | No related calls | |
| BackMsg_93 | No agent found in agent group or team | |
| BackMsg_94 | No related agent | |
| BackMsg_95 | Agent is in a consult call, failed to create new consult call | |
| BackMsg_96 | Agent is not in a regular call, failed to pause or unpause | |
| BackMsg_97 | only number,*,# are allowed as DTMF | |
| BackMsg_98 | Send DTMF failed | |
| BackMsg_99 | Send DTMF success | |
| BackMsg_100 | Failed to connect CTI | |
| BackMsg_101 | varname is only allowed to use Capital letters, numbers, -,_ and must begin with Capital letter or number | |
| BackMsg_102 | Set variable success | |
| BackMsg_103 | Set variable failed | |
| BackMsg_104 | Transfer to IVR is not allowed in a consult call | |
| BackMsg_105 | Callback is not allowed in a conference | |
| BackMsg_106 | Main IVR doesn't exist, please check “ivrexten” is valid | |
| BackMsg_107 | IVR flow error, please check “ivrflow” | |
| BackMsg_108 | Agent transfer IVR success | |
| BackMsg_109 | Agent transfer IVR failed | |
| BackMsg_110 | Extension doesn't exist | |
| BackMsg_111 | Please logout first,if you are going to change the Ext. No. | |
| BackMsg_112 | The installation of device is finished | |
| BackMsg_113 | The creation of accounts is failed | |
| BackMsg_114 | The creation of agents is failed | |
| BackMsg_115 | Beyond the Max Agent Num. | |
| BackMsg_116 | The license of server is ERROR | |
| BackMsg_117 | The Dialing request of App is failed | |
| BackMsg_118 | Agents not bind the extension | |
| BackMsg_119 | Can't get the status of extension registeration | |
| BackMsg_120[ip] | Server had send request for Yealink SIP phone[IP] | |
| BackMsg_121 | The extension has been used by other logined agent | |
| BackMsg_122[type] | Unsupport this version of yealink SIP phone[Version No.] | |
| BackMsg_123 | The agent not belong any group | |
| BackMsg_124 | Data deleted successfully by agent | |
| BackMsg_125 | The agent is calling now,you can't move it from group | |
| BackMsg_126 | The agent moved from group successfully | |
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