Perfect , yes if you wana call them from Canada it's tool free and they answer always , true u need to fill up this form so they can give u info about ur husband application
You will send it to them through this one
http://www.cic.gc.ca/english/contacts/web-form.asp
Attached it and within max 10 days will make effect
With this website you also can contact Abu Dhabi visa office and ask them for any info as his application is Outland so they are the one who is responsible for it and have access on his file if it already reached them for processing
And you can link his file with online account so you can see more detailed info on it, it's updated daily and email will be sent to you as soon as any changes occurs, or any additional documents needed
If you need help with this let me know