How to fix Dahdi-Wanpipe Drivers in ScopTEL

How to fix Dahdi-Wanpipe Drivers in ScopTEL

If you have updated your ScopTEL PBX server  to use a new CentOS kernel, it can sometimes happen that DAHDI/WANPIPE drivers need to be recompiled manually.

To verify if dahdi is properly compiled and working:
From ssh do: timertest
You should see a test result, if not then dahdi is not properly compiled. In this result timertest is functional.

[root@sip ~]# timertest
Opened timer...
Set timer duration to 8000 samples (1000 ms)
Waiting...
Timer Expired (999 ms)!
Timer Expired (1998 ms)!
Timer Expired (2999 ms)!
Timer Expired (4000 ms)!
^C
[root@sip ~]#

You can also check if dahdi is compiled on the active kernel with 'dkms status' and 'uname -a'.
dkms status will print the installation status on all installed kernels.
uname -a will print the active kernel version.

[root@sip ~]# dkms status
dahdi, 2.11.1-11.el7.scopserv, 3.10.0-1127.el7.x86_64, x86_64: installed
wanpipe, 7.0.26-1.el7.scopserv, 3.10.0-1127.el7.x86_64, x86_64: installed
[root@sip ~]#
[root@sip ~]# uname -a
Linux hostname 3.10.0-1127.el7.x86_64 #1 SMP Tue Mar 31 23:36:51 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
[root@sip ~]#


If you've been getting issues with Digital/Analog interfaces and drivers refuse to start, here's how to fix it.

To fix the problem, we’ll need to remove current installed drivers. So open an SSH connection to the server and execute the following commands:

service asterisk stop

service dahdi stop

rpm -e dahdi wanpipe dkms-dahdi dkms-wanpipe  --nodeps

Now that drivers are cleaned, you must reinstall drivers, this step will always download the latest version available on ScopServ RPM repositories.

You must execute this command from SSH to reinstall packages:

scopserv_yum install dkms-dahdi dkms-wanpipe -y

Finally, from the ScopTEL GUI, you must Commit configuration on the Telephony module.

Then it is recommended in SSH to do:

service dahdi start

service asterisk start

As you can see, the procedure for reinstalling  the DAHDI and Wanpipe drivers on your ScopTEL PBX is relatively simple.



    • Related Articles

    • ScopTEL IP PBX Software - Basic Installation Hierarchy for Telephony Server

      Basic Installation Hierarchy for Telephony Server Therefore the purpose of this document is to provide a visual walkthrough of a very basic but functional installation for one tenant. This tutorial does not include an overview of the overall network ...
    • Module 4 - ScopTEL IP PBX Software - PSTN Interfaces and Gateways

      Gateways A VoIP gateway is as a bridge between: Interfaces:  (T1/E1, FXO, FXS) Protocols:  SIP, Cisco SCCP/Skinny, MGCP (legacy protocol), and H.323 (legacy protocol) CODECS (media):  GSM (13 Kbps), iLBC (15 Kbps), G.711 (64 Kbps), G.722 (48/56/64 ...
    • Module 5 - ScopTEL IP PBX Software - Interface Groups and Outgoing Lines

      Interfaces Card Detect If any analog FXO/FXS or T1/E1 or BRI cards are installed then you must do a “Card Detect” to recognize and configure that hardware before the drivers and configurations can be properly loaded. Configuration > Telephony > ...
    • Installing and Configuring a Sangoma Card on ScopTEL PBX

      ScopServ Integration Full integration and support for Sangoma cards is included in ScopTEL PBX and includes a quick and easy way to configure all Sangoma cards directly from the ScopTEL PBX Web management interface.   Sangoma Digital/Analog Cards ...
    • ScopTEL - Sangoma Transcoding Installation

      Purpose of Document Depending on the Sangoma Hardware Transcoding SKU the solution can support between 30 and 4000 simultaneous G.729 sessions. Hardware transcoding off loads CPU cycles from the host CPU and does not require software G.729 licenses ...