Azure Communication Services sends your configured response for STOP: "Contoso Alerts: You’re opted out and will receive no further messages." STOP - If a text message recipient wishes to opt out, they can send ‘STOP’ to the short code.If you opt-in to use it, the opt-out management service automatically uses your responses in the program brief for Opt in/ Opt out/ Help keywords in response to STOP/START/HELP keyword. Prior to provisioning your short code, you are asked for your preference to manage opt-outs. How does Azure Communication Services handle opt-outs for short codes?Īzure communication service offers an opt-out management service for short codes that allows customers to configure responses to mandatory keywords STOP/START/HELP. Azure Communication Services encourages you to monitor and implement these opt-outs to ensure that no further message send attempts are made to recipients who have opted out of your communications. The STOP, UNSTOP and START messages will be relayed back to you.The delivery report will indicate a failed delivery with status message as “Sender blocked for given recipient.” Azure Communication Services detects STOP messages and blocks all further messages to the recipient.The carrier sends the following default response for START/UNSTOP: “NETWORK MSG: You have replied “unstop” and will begin receiving messages again from this number.” START/UNSTOP - If the recipient wishes to resubscribe to text messages from a toll-free number, they can send ‘START’ or ‘UNSTOP’ to the toll-free number.Text back "unstop" to receive messages again." The carrier sends the following default response for STOP: "NETWORK MSG: You replied with the word "stop", which blocks all texts sent from this number. STOP - If a text message recipient wishes to opt out, they can send ‘STOP’ to the toll-free number.Opt-outs for US toll-free numbers are mandated and enforced by US carriers and cannot be overridden. Opt-out handling How does Azure Communication Services handle opt-outs for toll-free numbers? Many US carriers block SMS traffic if they contain publicly available URL shorteners.īelow is a list with examples of common URL shorteners you should avoid to maximize deliverability: When sending messages in US, we encourage using custom URL shorteners to create URLs with dedicated domain that belongs to your brand. This is because the ‘free-public’ URL shorteners are used by bad-actors to evade detection and get their SPAM messages passed through text messaging platforms. However, US carriers prohibit the use of free publicly available URL shortener services. Shortened URLs are a good way to keep messages short and readable. Once the events are configured, inspect the "deliveryStatus" field of your delivery report to verify delivery success/failure. Use this quickstart to subscribe to delivery report events and troubleshoot. The 202 returned by the service means that your message has been queued to be sent and not delivered. I received an HTTP Status 202 from the Send SMS API but the SMS didn't reach my phone, what do I do now? Follow this quickstart to send messages to multiple recipients. Yes, you can make one request with multiple recipients. Can I send messages to multiple recipients? Customers are charged for messages sent to landline numbers. In the United States, Azure Communication Services does not check for landline numbers and attempts to send it to carriers for delivery. How are messages sent to landline numbers treated? Example: US short code can only send and receive messages to/from US recipients. Short codes are domestic numbers and are not capable of sending or receiving messages to/from outside of the country/region it was registered for. Can I receive messages from any country/region on short codes? Toll-free numbers are not capable of sending or receiving messages to/from countries/regions outside of US, CA, and PR. Can I receive messages from any country/region on toll-free numbers? Follow this quickstart to set up your event-grid to receive messages. Sending and receiving messages How can I receive messages using Azure Communication Services?Īzure Communication Services customers can use Azure Event Grid to receive incoming messages. This article answers commonly asked questions about the SMS service.
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