Return to IVR menu after calling an extension

Asterisk Asterisk Support
1

Is there a way for a call that comes in (say from a POTS line via a Digium TDM400p), gets an IVR messages, dials an extension, talks with that extension, then press some key or keys and go back to the IVR menu?

2

try Dial(destination,ringtime,g)

help file for g flag-
g - Proceed with dialplan execution at the current extension if the
destination channel hangs up.

so you’d do

exten => 1234,1,Dial(SIP/somebody,20,g)
exten => 1234,2,Goto(ivr,s,1)