To send the same fax content to multiple destinations (broadcasting) a request similar to the example below can be used.
This method is recommended for broadcasting as it takes advantage of the multiple tiers in the send request. This eliminates the repeated parameters out of the individual fax message elements which are instead inherited from the parent send fax request. An example below shows “SendFrom” being used for both FaxMessages. While not shown in the example below further control can be achieved over individual fax elements to override the parameters set in the parent.
When sending multiple faxes in batch it is recommended to group them into requests of around 600 fax messages for optimal performance. If you are sending the same document to multiple destinations it is strongly advised to only attach the document once in the root of the send request rather than attaching a document for each destination.