If I am not misunderstanding something, i see no problem for such situation: the domain can also be set to a certain value `domainA`, it is not required to be the same to sd_domain
Sorry for the delay, I finally understood what you meant, but as I see it, passing `sip:group_id@domain` as the second parameter could have clashes with other users, and that was my concern.
However, having the domain fixed to be used only to speed dial in the system, something like `sip:group_id@local.sd.domain`, would work making this modification useless. With this in mind I close this PR. Thanks and, again, sorry for the time wasted.