I am unable to make calls or send video messages from iPad Pro

Hi Thisisjustin

welcome to te Apple (user-to-user) Community!

Re: my IPad rings when I get a phone call on my iPhone but I can not answer on the iPad

Wondering if your iOS and iPadOS are up-to-date, and whether updating may help:

About iOS 18 Updates - Apple Support says iOS 18.3 // iPadOS 18.3: About iPadOS 18 Updates - Apple Support

(Note: Apple Intelligence is turned on by default with this update, unless you have it turned off in earlier OS.)

NB: It is always wise to back-up your devices before updating OS

_________________________________

If OS versions are already up-to-date

(or if you prefer not to: try restarting your devices instead:

ie: if needed: How to: Restart your iPhone - Apple Support): and... How to: Restart your iPad - Apple Support

________________________________________________

If you still need help after updating or restarting devices:

Check both devices are (1) using the same wi-fi network,

(2) both are signed into the same Apple Account on the device, and

(3) both devices are signed into the same Apple ID in iCloud

_________________________________

Re: I can not make a call from my iPad,

Check if Wif-Fi Calling is turned on : Settings > Phone > Wi-Fi Calling

Check if you are "allowing" calls in Settings > Phone > Calls on Other Devices

On Pad, in Settings > FaceTime turn on “Calls from iPhone”.

______________________________________________________________________________________________

Re: I am receiving and sending txt messages from iPad however, I can not send a video from iPad via message.

Share content in Messages on iPad - Apple Support

Eg: says:

"Share content with others

1. Go to the Messages app on your iPad.
2. Start a new message or open a conversation.
3. Do one of the following:

• • Copy and paste an image or a link into your message.
  • Tap , tap Photos to browse recent photos and videos, then tap to add.
• Tap a message attachment, tap , then tap a contact or .
  • Tip: When you tap , you can also copy, save, or print your attachment.

1. Add a message (optional), then tap .

From another app (like Podcasts, News, or Music), select the content you want to share, tap , tap Share, then choose Messages."

_ _ _ _ _ _ _ _

Sorry I don't know whether or not there is a size limit (Mb / Gb) for attaching videos in Messages.

(Eg: You can share short videos, or paste a link to a video on YouTube ok.)

All the best :-)