Set Up Your Phone Number: SMS, Calls & WhatsApp
How your Symphony Core business number works for texting and calls, your three number options, and how WhatsApp fits into the picture.
2 docs tagged with "sms"
View all tagsWhat Is a CP575, and Why You Need It for Text-Message Registration
To send business SMS in the US you must register with carriers using your exact IRS legal name and EIN. The CP575 is the letter that proves them — here's what it is and how to supply it.