Transform CX with WhatsApp Business Calling

WhatsApp Business Calling allows businesses to make and receive voice calls directly inside WhatsApp conversations. Customers can move from chat to voice with a single click, without dialing a number or switching applications.

Astroline acts as a specialized carrier between WhatsApp and your business voice infrastructure. When a customer starts a call from WhatsApp, the communication first reaches the WhatsApp Business platform and then passes through the Astroline Meta Carrier Platform. Our platform converts the call into a standard SIP session and delivers it to your Contact Center platform through a SIP Trunk.

The Astroline Meta Carrier Platform is a carrier-grade voice infrastructure layer that connects the WhatsApp calling ecosystem with enterprise telephony systems. It acts as the bridge between WhatsApp APIs and the SIP infrastructure used by Contact Centers.

Contact Centers work with SIP-based voice infrastructure, while WhatsApp calls are delivered through data APIs. Astroline performs the protocol conversion and routing required so WhatsApp calls can behave like any other inbound call inside your Contact Center.

Yes. Once the call arrives through the Astroline SIP Trunk, the agent receives it as a standard inbound call in the Contact Center platform. This makes it possible to apply IVR, agent queues, call recording, analytics and CRM integration without changing existing workflows.

Yes. The same number can receive calls from both the traditional telephone network and WhatsApp. This is managed through two parallel trunks: a PSTN trunk for traditional calls and a dedicated WhatsApp trunk connected through the Astroline Meta Carrier Platform.

The PSTN trunk receives calls from the traditional phone network, while the WhatsApp trunk manages calls originated from the WhatsApp application. Both can route calls to the same IVR or to the same agent queues within the Contact Center.

WhatsApp provides several advantages: • Customers already use the app daily • The call is placed from a verified business profile • It enables a frictionless transition from chat to voice • It works globally without dialing barriers • It creates more trust than an unknown phone number

Yes. Once the call enters the Contact Center through the Astroline SIP Trunk, you can apply standard capabilities such as call recording, AI transcription, conversation analytics and CRM logging.

Yes. WhatsApp uses end-to-end encryption to protect communications. Once the call enters the Contact Center infrastructure, the same security and compliance policies used for traditional calls can be applied.

WhatsApp Business Calling is especially useful for Contact Centers, BPOs, customer service operations, e-commerce businesses, logistics companies and organizations with international operations.

To enable this service, you need an approved WhatsApp Business Platform account and voice infrastructure connected to a carrier capable of routing these calls into the Contact Center. Astroline provides the Meta Carrier Platform, SIP connectivity and the full onboarding process.