In customer-facing communication, every missed message, delayed reply, or non-compliant call campaign can cost your business. The August 2025 update for the P-Series PBX directly addresses these pain points by helping your team respond faster, collaborate better, and maintain outbound compliance.
This release introduces Group Chat in Message Queues, Linkus Distinctive Ringtones, and Outbound Bulk Messaging via SMS and WhatsApp Templates. It also includes powerful outbound call compliance tools such as Do Not Call (DNC) Lists and Attempt Controls—bringing your PBX even closer to a complete contact center and UCaaS platform.
Watch the feature overview video to see the updates in action, or explore highlights below.
Group Chat in Message Queue
Managing high volumes of inbound messages through queues can lead to delays or missed replies, especially when only one agent can view a message at a time. Group Chat in Message Queue solves this by allowing all assigned agents to view, respond to, and collaborate on customer conversations in real time.
Agents can coach each other, tag in support when needed, and maintain message quality through teamwork. For customers, the experience remains seamless—they interact through a single, consistent queue identity.
There are three assignment modes available:
- Default Pickup: First agent to reply gets assigned, helping avoid duplicate responses.
- Manual Pickup: Agents decide whether to pick up the message after reviewing it.
- Disable Pickup: No assignment required; any agent can respond at any time.
Each agent sees the full message history before taking action, keeping context intact and response quality high. This dramatically improves reply time, consistency, and accountability across teams.
Outbound Bulk Messaging (SMS & WhatsApp Template)
This update turns your PBX into a centralized outbound engagement engine, allowing you to launch SMS or WhatsApp-based campaigns directly from the system—ideal for announcements, alerts, marketing messages, or service reminders.
Campaigns can include rich content—text, images, files, emojis—and be sent immediately or scheduled for later. You can manage replies as individual chat threads or keep them grouped under the campaign for simpler tracking. Real-time dashboards give you insight into delivery rates, failures, and engagement.
WhatsApp Template Messaging
Go beyond WhatsApp’s 24-hour response rule by using approved message templates. Templates ensure fast, compliant, and consistent communication—whether you’re initiating a campaign or responding within an ongoing chat.
Two use cases:
- Outbound Campaigns: Start conversations with multiple recipients using approved templates.
- In-Conversation Messaging: Use templates during ongoing chats to reply quickly and accurately.
Templates are categorized into three types:
- Utility (e.g. appointment reminders, shipping updates)
- Authentication (e.g. OTPs, login verifications)
- Marketing (e.g. promotions, announcements)
Each template supports dynamic fields, images, interactive buttons, and more. Once approved in WhatsApp, templates automatically sync to your PBX, making them instantly available for use.
SMS Bulk Messaging
SMS campaigns are fully customizable—no template approval needed. Send personalized text messages with optional emojis and attachments to hundreds of contacts at once. You can also choose how replies are organized (individual threads or grouped under a campaign), and track performance in real time.
Whether you choose WhatsApp or SMS, Message Campaigns let your team communicate at scale—without switching tools or platforms.
Enhanced Outbound Call Compliance
To protect both your business and your customers, Yeastar has added two major compliance tools: Do Not Call (DNC) Lists and Attempt Controls.
Do Not Call (DNC) List
Avoid regulatory violations by preventing calls to contacts who have opted out or are restricted by law. DNC lists can be created manually, imported, linked to phonebooks, or synced with external systems. When a campaign uses a DNC list, the dialer automatically blocks any matching numbers.
Agents can also mark numbers as DNC during calls for real-time updates, and all blocked attempts are logged for compliance tracking.
Attempt Controls
Limit how often a number can be called within a given time frame to avoid over-dialing. For example, you might set rules to restrict calls to once per day or once every three days.
When a contact exceeds the limit, the dialer automatically skips them. All restricted attempts are recorded in the call history for auditing and reporting.
These controls help you maintain ethical outreach practices while adapting to local regulations and business standards.
Linkus Distinctive Ringtone
In a high-volume call environment, not all calls are equal—and now you can hear the difference. With Linkus Distinctive Ringtone, assign different ringtones based on caller identity or inbound route, so your team knows whether it’s a customer, VIP, internal extension, or queue call—before they even pick up.
You can customize ringtones for:
- Internal vs. external calls
- Specific contacts
- Inbound routes such as IVRs, ring groups, and call queues
This feature is available across all Linkus clients (desktop, web, and mobile), supporting both preloaded ringtones and custom voice files. It helps agents prioritize calls and improves call-handling efficiency during peak hours.
Additional Optimisations
A number of enhancements improve usability, security, and integration:
- Set separate passwords for extension login and registration, with enforced strength requirements
- Real-time event delivery via Webhooks for smoother integration with third-party platforms
- Trunk SMS now supports Skyetel and Athena
- Linkus UC Client now fully compatible with Android 15
Explore the release notes for the full technical breakdown of these updates for Cloud Edition, Appliance Edition, and Software Edition.
Stay Up to Date with the Latest Features
- July 2025: Call Flow Designer, Text-to-Speech, Voicemail Transcription
- June 2025: Presence Customization, Linkus CarPlay, S-Series to P-Series Migration
- May 2025: Dynamics 365 Integration, Google SSO
- March 2025: CRM Integration Templates, Call Notes
- February 2025: Multi-time zone support, Outbound Call Center features
- January 2025: Hotel management, Missed Call Reports
- December 2024: Number Masking, Auto Provisioning for NEC IP Phones
- November 2024: YCM Task Expansion, White Labeling for PSE
- October 2024: SQL Integration, Enhanced Zoho CRM, Linkus UX Upgrades
Get Started Today
Upgrade your P-Series PBX firmware from the management portal to activate these new features. If you’re new to P-Series, explore everything it has to offer with a 30-day free trial.
For outbound compliance tools like DNC and Attempt Controls, apply for the P-Series Software Edition (PSE) free trial. For messaging and full UCaaS capabilities, try the P-Series Cloud Edition (PCE) trial.