NEC SL2100 SIP trunk call disconnect after 5 second

[bk Patel]

Dear all
I have SIP extension from service provider which is configure in NEC SL2100 as sip trunk ,
my incoming call working fine but whene i call outgoing then call will disconnect after 5 second.without any message , if same extension we configured in other device it is working fine incoming out going both


pcap file for reference is here

https://files.engineering.com/getfi...after_5_second_38100313375f_170101005117.pcap

 

[CoralTech]

So, one phone works the other doesn't?

 

[bk Patel]

yes , other phone is work but our NEC SL 2100 not work