External Chat Overview (Desktop App)
External Chat gathers the messages your customers send from different channels, SMS (Short Message Service) and social media among them, into a single workspace inside the Cloud Voice App. Instead of switching between apps, your agents read and answer every conversation from one desktop inbox.

What you need first
Section titled “What you need first”Before agents can use External Chat, confirm the following.
Phone system
- Version 84.20.0.21 or later.
- An Enterprise Plan or Ultimate Plan subscription.
- At least one messaging channel configured on the system.
Cloud Voice App (Desktop)
- Windows: version 1.2.14 or later.
- macOS: version 1.2.10 or later.
Channel types
Section titled “Channel types”Each conversation carries an icon that shows where the message came from:
SMS
WhatsApp
Facebook
Live Chat
Channel limits
Section titled “Channel limits”Individual channels behave differently. Use the table below to see what each one supports.
| SMS | Live Chat | |||
|---|---|---|---|---|
| Chat type | 1:1 conversations and group chats handled by an agent queue | Same | Same | Same |
| Session auto-closure | Set by your administrator | Set by your administrator | Set by your administrator | Set by your administrator |
| Who can start a session | Agent or customer | Agent (via an approved WhatsApp message template) or customer | Customer only | Customer only |
| Maximum file size | 100 MB | 100 MB | 25 MB | 10 MB |
| File retention | 72 hours | 72 hours | 72 hours | 72 hours |
Files that customers or agents share stay available for a limited time only, and the maximum file size differs by channel.
What External Chat gives you
Section titled “What External Chat gives you”- One inbox for everything. Every customer query, regardless of the channel it arrived on, lands in the same place so nothing gets missed.
- Business identity stays intact. Agents reach out using a company phone number, keeping personal numbers private.
- Handoffs without friction. Transfer a session to a colleague and they inherit the full chat history, so they can pick up mid-conversation with full context.
- Full session control. Turn a chat into a call, archive or restore sessions, and manage the queue as work demands.
- Notifications on your terms. Switch pop-up alerts and sounds for new messages on or off to suit how you work.
Next steps
Section titled “Next steps”Once the requirements are in place, agents can start receiving and answering customer messages from external channels directly in the Cloud Voice App. See your contact center documentation for the step-by-step workflow of handling these conversations.