Add contact search button at conference call

[iBabu007]

Checklist

• [x] I am using the latest version - 1.4.5
• [x] I checked, but didn't find any duplicates (open OR closed) of this issue in the repo.
• [x] This issue contains only one feature request. I will open one issue for every feature I want to request.

Describe the feature you want

Please add "contact search" button at conference call (+). This is helpful because it is impossible to remember every number.

What is the use of "add contact" option inside conference call ? Replaced "add contact" with "search contact" inside conference call.

Is your feature request related to a problem? Please describe it

Additional context

How will you/everyone benefit from this feature?

[archer46]

Would like to see this as well

[sahiluchil]

In todays world where no one remembers the phone numbers, this is the most important update that is required.