Monday, 8 January 2018

D-channel is down!

we need to follow below some steps :-

if we have Digum card then change the src4 status in below file

1) vi /etc/dahdi/system.conf

change crc4 status if not available put crc4  after change in file run below comands

2) dahdi_cfg -vvvvvvvvvvvvvvvvvvvvvvvvvv

Check now in asterisk D-channel issue is resolve or not if not then ask your ISP for same.

Sangoma Card   D-channel issue :-

change the crc4 status in two file 

change crc4 status if not available put crc4  change the Ncrc4 with crc4 in wanrouter file

1) vi /etc/dahdi/system.conf

2) vi /etc/wanrouter/wanrouter1.conf

Then restart the wanrouter

3) service wanrouter restart

Check now in asterisk D-channel issue is resolve or not if not then ask your ISP for same.


exp:- In few days back i am also facing same issue with sangoma 16 port card i have change Crc4 and also told ISP but it come only when heavy call traffic on server.

Resolve :- As we check when we have heavy traffic then this issue is came. then we decide to change the server with good hardware server then issue is resolve.








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