Channel originate with a specific contact

Most of our users have two phones. A Softphone and a SNOM D385 or SNOM M70. While i’m able to initiate a call on the D385 via the Softphone (D385 have a Action-URL for this), is it not possible in the same way on a DECT M70 (they don’t have a real IP).

I tried it with asterisk -rx "channel originate…”, but because the Softphone is the last contact in the PBX for an extension, the call will be initiated there, not on the DECT M70.

i tried with

asterisk -rx "channel originate PJSIP/15@f3bd429f10 extension 181@from-internal"

and

asterisk -rx "channel originate PJSIP/[email protected]:5060 extension 181@from-internal"

Both are not working.

summarized:

I want to dial a number on the Softphone, but will do the call on the DECT M70.

Is it possible in any way?

Regards

Thomas