Provider text messages

Your provider can assign a messaging number to your BYO PBX account for text messages in the softphone. They choose the messaging connection, supply your account setup and enable the service. Administrators can compare the provider connections and hosting options.

For VoIP Innovations / Sangoma, your provider must supply an app build containing Sangoma mailbox support and complete live carrier callback validation. Your provider can configure the portal connection using Set up VoIP Innovations / Sangoma.

Before you start

Use the account setup supplied by your provider and allow notifications when prompted. Your phone needs internet access over Wi-Fi or mobile data.

If you entered your SIP credentials manually and messaging is not configured, ask your provider for the account setup needed to connect its messaging API. Working calls do not confirm that texting is configured. Your provider can check server receipt in the portal while you check message delivery in the app.

Texts use the messaging number assigned to your softphone account. This may be different from your mobile SIM number or your outgoing calling number.

Send a text

1. Open Messages and select SMS if category tabs are shown.
2. Tap + and choose New SMS.
3. Select a contact, or enter the recipient’s full international number in To and tap the next arrow. Include + and the country code.
4. Choose the account you want to use if prompted.
5. Type your text and tap the send arrow.

To reply, open the conversation and send your next message from there.

Receive a text

Incoming texts appear in Messages. When the app is in the background or the phone is locked, a notification can alert you. Tap it to open the conversation.

If your phone was offline, reconnect and open the app to check for new messages. The phone’s notification and privacy settings control whether you see an alert, a sender name or a message preview.

Messages is missing

Ask your provider to check that messaging is enabled and that the correct number is assigned to your account. Use updated provisioning if they give you new account setup details. Changing a calling setting does not activate a texting service.

Texts arrive without an alert

Open Menu > Settings > Permissions and check notification access. In the phone’s system settings, allow notifications for the app and review Focus or Do Not Disturb and any background restrictions. For message sounds, open Menu > Settings > Preferences > Alerts and sounds.

To test, open the app, return to the Home screen and lock the phone. Ask someone to send a text to your assigned messaging number. If messages still appear only after you open the app, give your provider the time of the test and say whether you used Wi-Fi or mobile data.

Photos and MMS

The app supports carrier MMS through an MMS-enabled Telnyx number assigned to your account by your provider. It checks the number’s MMS capability before uploading an attachment. Open the SMS conversation and use the attachment control to choose one item at a time; the service may resize images or reject files that exceed its limits.

Entering Telnyx SIP credentials alone in SessionTalk does not enable carrier MMS. The account also needs the SessionCloud messaging configuration and an assigned number. Ask your provider to enable the service. Twilio text support does not establish MMS support in this integration. Group MMS is not covered by this guide.

The Sangoma integration also includes MMS for configured North American numbers with carrier MMS service. Once enabled and validated by your provider, it uses the same conversation attachment control. It requires a compatible app and provisioned mailbox; the attachment control alone does not confirm that the carrier has activated MMS.

Flowroute, Voxtelesys, Telgorithm, VoIP.ms, Inteliquent and Clearfly connections also offer MMS. Your provider must configure and validate the connection and supply updated account provisioning. Attachment limits vary: Clearfly allows one attachment, VoIP.ms three and Telgorithm five. These connections limit attachments and caption text to 600 KB combined per outgoing message. See the provider comparison for details.

SIP or chat file attachments use a separate service and are not carrier MMS.

Administrators can follow SMS for BYO PBX to set up the service.