Hello all, i have a problem on incoming call's from SIP Provider that ist going through the Asterisk to a Grandstream HT502. The first ring is executed on the HT502 propperly, but no more ring will follow. But the call can nevertheless be answered by a phone on the gateway. If i call the same Gateway through a connected second Asterisk the ringing is done well. If a call is coming through the same SIP Provider to another Gateway i.e. "Inalp Patton SmartNode SN4552" all is working fine. Is this a problem on the configuration of the Gateway itselfs or on Asterisk for this gateway? Thanks Hans-Peter Straub