Outgoing Calls are Getting Blank after 15min from any extension

Sangoma Trunking
1

Hi Team,

I have configured SIP trunk and able to make outbound calls , while i am dialing some nos the calls are getting blank in my phone after 15min and i can see the trunk was live , but i am unable to here any voice , i am using grandstream phones and i am facing issues with all my phones.

Below is my outgoing trunk configuration and i need deadly help on this , this issue was not happening for all nos .

type=friend
nat=yes
host=x.x.x.x
fromdomain=x.x.x.x
context=maincontext
dtmfmode=rfc2833
disallow=all
allow=alaw
insecure=invite

Thanks
Hari

2

Deadly help?

Don’t understand. You didn’t indicate any information on your system or network and your actual problem is not clear.

maincontext is not a freepbx context so I wonder if you are even using FreePBX