I have created a ring-call extension:
exten => 100,1,Dial(SIP/zoiper_x250&SIP/xlite_x250&SIP/bria_note3&SIP/monika_gigaset&SIP/fritzbox_master&SIP/cisco_sportroom&SIP/onda_kitchen&SIP/tablet_livingroom&SIP/chiara_samsung&SIP/chiara_ipad&SIP/laura_ipad, 30) ; ext 100: all localsets are called simultaneuously
This works fine if the call is picked up by softphones or by fritzbox-phones. If I let a Linksys/Sipura SP-901 pick it up, however, the caller will not hear anything and the call will be dropped. Any suggestions? The same SP-901 works fine if registered directly with the SIP provider rather than with the asterisk server (which is hooked up to the same SIP provider).