Dear All ,

I have connected two NEC SL1000 system together by SIP trunks ... there is no IP Phones the both sides have Digital phones and analogue phones and both system call together through SIP trunks

The customer complains there are a ghost calls coming to Operator randomly and frequently and once pick up the handset there is nothing


Is there any idea to prevent this calls ?

Thank you



NEC Business Partner
Certified on SV8100,SV8500,SL1000