YMP Release Notes

Release notes for Yeastar Management Platform (YMP).


Release Date: March 6, 2023
  • Fixed the PBX email issue: If the Cloud PBX system email was set to use the default SMTP server, users could not receive PBX emails.
  • Fixed the PBX status issue: After restarting a Cloud PBX on YMP, the PBX status remained at "Starting".
  • Fixed the PBX upgrade issue: After upgrading a Cloud PBX on YMP, the PBX web interface became inaccessible and the browser prompted "502 Bad Gateway".
  • Fixed the YMP reboot issue: After rebooting the YMP server, the YMP notification contact received a PBX crash alarm.


Release Date: February 21, 2022

  • Improved compatibility with Mail Server: Updated the TLS version of Outgoing Mail Server (SMTP) to TLS 1.2/1.3.
  • Fixed the PBX rebooting issue: After executed rebooting on Cloud PBX, the PBX couldn't restart running automatically.
  • Fixed the storage issue: After a YMP Server had been running for a certain period, the system would generate a large amount of logs unexpectedly, resulting in alarms on full storage space.


Released Date: September 1, 2020

  • YMP administrators can restrict whether PBX users can detect a specific PBX firmware.
  • Optimized the display order of the PBX firmware versions on the PBX Image list.
  • Fixed the issue that Daylight Saving Time setting on YMP didn't take effect.
  • Fixed the YMP Welcome Email issue: If the YMP administrator created multiple users, the system would send incorrect welcome emails to PBX users.
  • Fixed PBX Co-branding issue: If the PBX was upgraded to version, the co-branding settings would not take effect on PBX.
  • Fixed the network disk issue: The network disk had been mounted, but the YMP web page showed that it was unmounted.


Released Date: February 12, 2020

  • Enhanced the monitoring of PBX's status and took automatic repair measures.
    • Added support for detecting the PBX's status and automatically repairing abnormal PBXs.
    • Added support for sending PBX Crash alarms (Alarm > Alarm Settings).

      If the YMP fails to repair a PBX, YMP will send a PBX Crash alarm to the notification contacts.

  • Fixed the issue that upgrading PBX firmware on YMP web page might fail.
  • Fixed the CPU alarm issue: An incorrect CPU alarm would be sent when you were upgrading the YMP.


Released Date: December 16, 2019
  • Improved system stability.
  • Optimized SMTP Email feature.
    • Optimized Email Test feature: Click Test, and YMP will send a test email to administrator's mailbox. If sending test email failed, detailed failure reasons would be displayed on the YMP web interface.
    • Restricted the Sender Email Address field: No special characters are allowed.
  • Optimized Alarm settings.
    • The notification permissions for a contact is editable.

      Go to Alarm > Notification Contacts, you can edit the notification permissions for a contact.

    • By default, alarm notifications for the following events are enabled, and the notification emails will be sent to the YMP administrator.
      Note: Do NOT turn off notifications for the following events and pay attention to the notification emails so that you can fix the issues to ensure that the YMP runs stably.
      • CPU Overload
      • Memory Overload
      • Disk I/O Overload
      • Storage Full
  • Optimized Operation Log.
    • Added filters for Source: All, Web, and API.
    • Added Source column in the downloaded operation_log.csv.
  • Fixed the issue of PBX upgrade: If PBX name contained Chinese characters, the PBX upgrade would fail.
  • Fixed the occasional boot failure of PBX.
  • Fixed the issue of Dashboard.
    • The transmission rate of Network displayed incorrectly.
    • The line graph of Active Calls (Calls), CPU, and Network displayed incorrectly.
  • Fixed the display issue of PBX domain: PBX domain displayed incorrectly if Translation Extension was enabled on Google Chrome.


Released Date: October 24, 2019

  • Added Disk I/O Overload alarm.
  • Improved the YMP system stability.
  • Optimized Alarm settings: The alarm notifications of Memory Overload and Storage Full are enabled by default.
  • Optimized the alarm mechanisms of PBX Active Calls Oversubscription, thus the system performance is improved.
  • Fixed the issue of Network Dashboard: The received network data was not updated automatically on the Dashboard.
  • Fixed the issue of YMP network: The PBXs might be unreachable as the YMP network went wrong.
  • Fixed the issue of Notification Email: If the YMP system restored configurations from backup data, the notification emails failed to send.


Released Date: September 2, 2019

  • Improved the YMP system stability.
  • Added PBX status "Starting".

    When the PBX is booting, the PBX status shows (Starting).

  • Optimized Operation Log: Added support for recording logs of Modify PBX Type.
  • Optimized Operation Log: Added Source information in each log, which indicates the operation is operated on the YMP web or via YMP API interface.
  • Optimized settings on Operation Log page: After Log Type is selected, only the relevant options are displayed in the drop-down list of Operations.
  • Optimized Create a User page: Added support for entering Company information for a user.
  • Optimized User list page: You can select Company field to be displayed in the User list.
  • Optimized PBX list page: You can select Creator field to be displayed in the PBX list.
  • Fixed the issue YMP auto backup: When bulk upgrading PBXs, the YMP auto backup would fail.
  • Fixed the display issue on YMP web: The number of concurrent calls displayed on the web was incorrect.
  • Fixed the issue of PBX upgrade: If you skipped a few released versions and upgraded PBX directly to the latest version, the PBX wouldn't work properly.
  • Fixed the PBX deletion function: After deleting a PBX, an error message was displayed on the web page, however, the PBX was successfully deleted.
  • Fixed the issue of PBX status: After stopping a PBX on YMP web, the PBX status would be abnormal.


Released Date: June 27, 2019

  • Added PBX Co-Branding feature
    • Added support for co-branding Yeastar Cloud PBX by customizing logo, product name, favicon (web icon), and email template.
    • Added support for granding Co-branding privileges to YMP hosting users.
    • Please contact Yeastar before using Co-branding feature.
    • PBX co-branding is supported on the PBX with firmware version or later.
    • Each time you change the co-branding setting on the YMP, you need to reboot the PBX to take effect.
  • Fixed the issue of Linkus Email: The login QR code could not be displayed if the email was sent to Gmail, Whitebox, and Outlook.
    Note: Required PBX version: or later.


Released Date: April 12, 2019

  • Fixed the issue on YMP version If the YMP hostname was changed, you could not log in the YMP web interface.


Released Date: April 1, 2019

This version fixes several stability issues of the system. We strongly recommend that you upgrade your YMP to the new version.

  • Improved YMP security.
  • Improved YMP stability.
  • Optimized YMP Backup & Restore feature: When the current YMP server is down, you can restore the YMP backup data to a secondary server and the PBXs will run normally in 7 days.
    Note: Please contact Yeastar to activate the secondary server within 7 days.
  • The Linkus Chat feature and PBX Upgrade feature are enabled by default for a newly created PBX.
  • Added support for downloading Operation Logs.
  • Optimized PBX Expiration Date setting: Restrict date format to YYYY-MM-DD.
  • Optimized PBX Export feature: The PBX Type is included in the exported PBX Basic Info.
  • Fixed the issue that the newly created PBX might not be started.
  • Fixed the issue that the statistics of PBX capacity were incorrect.
  • Fixed the PBX issue: If Auto Reboot was configured on the PBX, the PBX might stop running.


Released Date: February 19, 2019

  • Added support for API interfaces.

    Log in to the YMP web interface, go to System > API to enable API feature.

  • Added support for configuring PBX type to Trial or Commercial.


Released Date: December 6, 2018

  • Improved the YMP system stability.
  • Optimized Customer settings:
    • Removed "Reseller" and "End User" classification of customers. You can manage all the customers on PBX > Customer page.
    • Added support for configuring a same email address for multiple customers.
    • Added External ID setting.

      You can associate the YMP customers with your CRM system or other systems.

  • Optimized User settings: Added support for searching the YMP user accounts.
  • Fixed the issue that a web page error was displayed when resizing the PBX.
  • Fixed the Backup and Restore issue: The PBX could not reload all configuration pages if you restored YMP configurations from an earlier-version backup.
  • Optimized the email template of PBX information.
  • Moved the SBC information to System > Information page.


Released Date: October 25, 2018

  • Improved the security of YMP web login.
  • Added support for enabling or disabling PBX's Recording function and configuring PBX's Recording capacity.

    Each PBX has 500-minute recording time for free.

  • Optimized System Email settings: Added support for configuring Email User Name.
  • Optimized PBX Export function: The status of Linkus Chat will be exported.
  • Fixed the issue that the Turkish time zone was incorrect.


Released Date: July 26, 2018

  • Added support for enabling or disabling Linkus Chat feature for PBX instances.


Released Date: June 29, 2018

  • Added support for using script to backup and restore.
  • Added support for backing up and restoring auto recording files and voicemail files.
  • Added support for selecting which files to back up.
  • Added support for displaying the upgrade status of PBXs.
  • Added support for setting auto upgrade of PBXs.
  • Optimized the email template of PBX information.
  • Added support for the operation log: Modifying the Alarm Threshold of active calls will be recorded in operation logs.


Released Date: May 2, 2018

  • Added support for monitoring active calls of PBX instances, and setting alerts of PBX active calls.

    Note: PBX instance should be upgraded to version
  • Added support for monitoring the total active calls of the YMP server, and setting alerts of YMP active calls.

    Note: PBX instance should be upgraded to version
  • Added support for modify the name of PBX instance.
  • Fixed the bug that the SIP Server was wrong in the PBX information Email.
    Note: If you had modified the default Email Template before, you need to change the variable name of SIP Server to ${sipserver} in your email template.


Released Date: April 10, 2018

  • Added support for upgrading firmware in PBX.
  • Added support for exporting PBX information.
  • Optimized system logs.
  • Optimized web interface.
  • Optimized the email template of Alarms.
  • Optimized the Email Template of PBX information.


Released Date: February 8, 2018

  • Fixed the connection issue with SBC.


Released Date: January 25, 2018

  • Different PBXs in the same YMP can be interconnected.
  • PBX instance and YMP have the same domain level.
  • Added support for protecting the system against outside intrusion.
  • The resellers’ company information is editable.
  • Optimized PBX search function: added PBX URL and email address search criteria.
  • Extended the expiration time for the PBX password reset link to 24 hours.


Released Date: November 30, 2017

  • Optimized Backup feature: the system has a backup schedule by default; the system will back up at 00:00 every day; a maximum of 60 backup files will be stored on the system.
  • Optimized reconnection between YMP and YPS: after the YMP is disconnected with the YPS, users can log in YMP, and reconnect to YPS manually.
  • Optimized Dynamic Defense: if an IP is blocked, all the ports of this IP will be blocked by the YMP.
  • Optimized Blocklist: if the number of blocked IP addresses reaches 5000, the system will delete the IP addresses which are blocked for more than 3 months.
  • Optimized web interface: if cloud PBX uses initial user name and password, the option “Reset Admin Password” will be invalid.
  • Optimized web interface: added identification for required fields.
  • Fixed E-mail server issue: voicemail to E-mail could not work on cloud PBX.