隨著搜索研究的深入, 發現上麵提到的方法可能隻能解決那個問題中特別的羅技sip設備的問題, 但其它sip設備可能仍然有問題. 看到這裏的報告:
http://forums.dlink.com/index.php?topic=7616.0
還有這裏:
http://www.junctionnetworks.com/knowledgebase/onsip/devices/router-configuration/d-link-no-not-purchase-until-further-notice-firmwa-0
"Please note that firmware 3.x is incompatible with our service. The 3.x DLink firmware requires that a SIP ALG be enabled in order to pass SIP packets through the router. As the SIP ALG alters the SIP packet, this requirement is incompatible with OnSIP Hosted PBX. "
要等回家試了才知道.