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unmount a Linux disk partition centos

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To unmount a Linux disk partition centos # umount /dev/sda1 Type the command to unmount /mnt forcefully: # fuser -km /mnt Where, -k : Kill processes accessing the file. -m : Name specifies a file on a mounted file system or a block device that is mounted. In above example you are using /mnt Linux … Read more

what you need to know, before you deploy the VoIP in your organization : QoS (Quality of Service) for VoIP

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The organization(s) that migrate from legacy PABX system (traditional phone system) to IP based PBX (Private Branch eXchange), they require a very carefully planning before they deploy the VoIP. They need to ensure the QoS (Quality of Service) for VoIP in your organization. Step 1 Analyze your existing LAN (Local Area Network) and find if … Read more

Dialer in one hour

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Expertise in : OPEN SOURCE Dialer DEVELOPMENT Features:- Reports :  Optimized dialer reporting, Real-time and summary reports, Hourly Totals by Status, Category on Real Time report Call report Lead performance by campaign report Agent performance report Call Features: Call conference , Call Transfer Call Barge, Whisper, Call monitor (snoop or silent) Click to Call / … Read more

saving data into custom cdr field – add new filed in cdr

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I created custom field “rec_name” id table “cdr”, database “asteriskcdrdb”. In this field I want to store recording name. I know i should do it by adding this line in one of .conf files, but where? exten => s,1,set(CDR(rec_name)=${CALLFILENAME}) I can do it by sql statement, too, but i don’t know where is the file … Read more

Find Linux RAM Information Command and system information

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Linux yum

  You need to use the free command: # free # free -m total used free shared buffers cached Mem: 7930 4103 3826 0 59 2060 -/+ buffers/cache: 1983 5946 Swap: 15487 0 15487 For system information: You need to use the dmidecode command: # dmidecode –type 17 OR # dmidecode –type memory OR # … Read more

Asterisk : Creating a Simple IVR Menu

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[demo-menu] exten => s,1,Answer(500)    same => n(loop),Background(press-1&or&press-2)    same => n,WaitExten() exten => 1,1,Playback(you-entered)    same => n,SayNumber(1)    same => n,Goto(s,loop) exten => 2,1,Playback(you-entered)    same => n,SayNumber(2)    same => n,Goto(s,loop) [from-pstn] exten => 6598,1,Goto(demo-menu,s,1)

Mount.cifs cannot allocate memory mounting

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Linux yum

Mounting a Windows (SMB) share on Ubuntu gives us a “cannot allocate memory” error. Executing a command like this: mount -t cifs //toad/Backup /media/backup -o user=username,password=password,iocharset=utf8,file_mode=0777,dir_mode=0777 We get an error like this: mount error(12): Cannot allocate memory Refer to the mount.cifs(8) manual page (e.g. man mount.cifs) Solution: First, check the permissions on your shared folder. … Read more