Yeastar Central Management 87.16.0.51

Release Date: October 20, 2025

New features

API Request Rate Limits
  • Added support for limiting API request rates for subordinate users (hosting users and resellers) using the token bucket algorithm. You can set the token bucket capacity and refill rate for each user individually based on their client ID, allowing granular control over users' API usage and effectively protecting system resources from excessive or sudden API request bursts.

    For more information, see Limit API Request Rate for Subordinate Users.

  • Added support for monitoring the API request traffic of subordinate users, allowing you to intuitively view traffic trend in a line chart and adjust rate limit settings accordingly.

    For more information, see Check API Request Traffic for Subordinate Users.

  • Added the following alarms for the API request rate limits feature (Path: Alarm > Alarm Settings > Event).
    Alarm Description
    Rate Threshold Alert Triggered when the API request volume of a specific user has reached 80% of the configured rate threshold.
    Burst Capacity Alert Triggered when the API request volume of a specific user has reached 80% of the configured burst capacity.
    Rate Limit Triggered Triggered when the API request volume of a specific user has reached the configured burst request capacity.
Cloud PBX API Call
Added support for calling P-Series Cloud PBX's API endpoints via YCM API, enabling centralized and efficient management of PBX systems.
Note: The firmware of P-Series Cloud PBX should be 84.20.0.128 or later.
For more information, see Call Cloud PBX GET API and Call Cloud PBX POST API.
Task
Added a task type Download CDR, which allows you to set up tasks to download CDR data from specified P-Series Cloud PBXs.
Note: The firmware of P-Series Cloud PBX should be 84.20.0.128 or later.
For more information, see Schedule a CDR Download Task.

Improvements

Shared Trunk
Added a configuration item Enable SIP Authentication Cache for register trunk (Path: Cloud PBX > Trunk Sharing > Shared Trunks > Register Trunk > Advanced > VoIP Settings). When enabled, the PBX will cache successful SIP authentication credentials and reuse them for subsequent requests (INVITE and BYE) within the same session or registration cycle.
Note: The setting can be applied to the P-Series Cloud PBXs with a firmware version of 84.20.0.128 or later.
Alarm
Optimized the PBX Reported alarm:
  • Renamed the alarm Yeastar SMTP Server Abnormal to Mail Server Error.
  • In addition to PBX's built-in SMTP server, when a custom mail server fails to send emails, the alarm Mail Server Error will also be triggered and reported to Yeastar Central Management.
    Note: To achieve this, the firmware of the P-Series PBX system should be 37.20.0.128/83.20.0.128/84.20.0.128 or later.
User
Added support for assigning the following user permissions to colleagues or subordinate accounts:
  • Download CDR Task: Allows the user to create tasks for downloading CDR data from specified P-Series Cloud PBXs.

  • CDR Files: Allows the user to access and manage the CDR files downloaded from P-Series Cloud PBXs.

API
  • Optimized the API feature settings: When enabling the API feature, the Client IP Restriction will be automatically enabled to enhance security.
    Note: You can modify or disable the IP restriction during configuration as needed.

  • Optimized the API interfaces for the following features.
    Feature Details
    Cloud PBX Added Added an interface /dm/open_api/v1/cloud_pbx/instances/get, which can be used to query the information of a specific Cloud PBX using its URL.

    For more information, see Query a Specific Cloud PBX by URL.

    Optimized Added a parameter pbxApi, which can be used to query or set the API enable status of P-Series Cloud PBX.
    Note: The firmware of P-Series Cloud PBX should be 84.20.0.128 or later.

    For more information, see the following topics:

    Shared Trunk Optimized Added a parameter enbSipauthCache, which can be used to query or configure the SIP authentication cache setting of a register trunk.
    Note: The setting can be applied to the P-Series Cloud PBXs with a firmware version of 84.20.0.128 or later.
    For more information, see the following topics:
Task
Optimized the Backup task: Added support for backing up Fax Logs when creating backup tasks for a P-Series PBX System.

Repository
Added support for accessing and managing the CDR files downloaded from P-Series Cloud PBXs via tasks (Path: Repository > CDR Files).

For more information, see Manage CDR Files.