iMessages-gonewrong wrote:
Thank you I did not know that so if I want to be able to send sms/mms from iPad then I have to use my cell phone number which needs to be linked with my iPad am I correct assuming this.
Do you have an iPhone as well - or just an iPad?
An iPad, whether a Cellular model or not, is not capable of directly accessing Cellular Voice or SMS/MMS Messaging features. An iPad with either WiFi or Cellular connectivity alone can only access IP-data services.
However, If paired with an iPhone, the capabilities of iPad significantly broaden to include access to Cellular Voice and Messaging services of the associated iPhone - relayed to the iPad over WiFi using Apple’s continuity features.
More information about Continuity and the relevant Cellular services can be found here:
Continuity
https://support.apple.com/en-gb/HT204681
SMS/MMS Messaging
https://support.apple.com/en-us/HT208386
WiFi Calling
https://support.apple.com/en-gb/HT203032
When correctly configured, the iPad FaceTime App provides access to Cellular Voice Calling features - whilst Messages supports SMS/MMS messaging services.