I have SIP Phone Plugin installed openfire 3.5.1 and SIP Softphone Plugin installed in Spark 2.5.8. In Spark, it won’t registered. When I go to openfire, click on Phone, it says “RegisteredFailed”. I have installed Asterisk-IM Plugin in openfire and have it setup and working. But for SIP Phone Plugin, it is not working. Both plugins, asterisk-im and sip phone have the same concept where connect plugin to asterisk server.