wav/mp3 to g729 ulaw alaw gsm converter

mp3 / wav files to g729 or ulaw or alaw or gsm converter

Free converter to convert mp3 or wav files to g729 , ulaw , alaw ,gsm audio formats.

1.Prerequistics 

Asterisk server ( asterisk installation guide)

ease audio converter ( link)

winscp (link) 

2. Assume you have working asterisk server and ease audio converter installed in your windows 

   

3. Convert your audio file to wave format which suitable for the asteirsk ie:16bit Mono 8k PCM wav audio

4. Using Ease audio converter you convert any audio format file to the above said format.

open the ease audio conveter 

click the settings ==>output formats ==>WAV

quality=Custom quality ; Frequency(Hz)=8000 ; Channels = mono ;outputformat= 16bit wav(PCM)

press ok

now upload your audio files and select output format to wav and press the start button.

the output file will be in the 16bit Mono 8k pcm wav , which suitable to use in asterisk 

5. Now upload your converted audio file to the asterisk /var/lib/asterisk/sounds directory  using the winscp tool

6. Now using putty log in to the asterisk server via ssh

7. go to the asterisk cli command by typing  asteirsk -vvvvr

8 . In cli command type the below commands to convert you audio file to g729 or ulaw or alaw or gsm\

For G729    file convert youraudio.wav youraudio.g729

For ulaw      file convert youraudio.wav youraudio.ulaw

for alaw       file convert youraudio.wav youraudio.alaw

for gsm        file convert youraudio.wav youraudio.gsm

9. the converted file will be in the /var/lib/asterisk/sounds  folder/directory.

e-mail alert for every root logins

Script to send email for every root logins in linux

1.cd /root
2 nano .bashrc
3. Scroll to the end of the file then add the following:

echo 'ALERT - Root Shell Access (YourserverName) on:' `date` `who` | mail -s "Alert: Root Access from `who | cut -d"(" -f2 | cut -d")" -f1`"yourname@gmail.com

Replace gmail with the handle for your actual server
Replace you@yourdomain.com with your actual email address

4. CTRL+x Y

now log in as root u should get the email
to check the status of mail in the linux type mailq
tail -n 50 /var/log/maillog

How to reset the Mysql root password (forget the mysql root password)

Follow the below steps to reset the mysql password.

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Step 1 : stop the mysql

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/etc/init.d/mysql stop

it will outputs 

stopping MySQL database server : mysqld

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Step 2 : starting the mysql in safemode

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run the below command to start mysql in safe mode

mysqld_safe --skip-grant-tables &

the above command outputs as

[1]5988

Starting mysqld daemon with databases from /var/lib/mysql

mysqld_safe[6025]: started

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Step 3 : logging to mysql

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mysql -u root 

output

Welcome to the MySQL monitor.  Commands end with ; or \g.

Your MySQL connection id is 1 to server version: 4.1.15-Debian_1-log

Type 'help;' or '\h' for help. Type '\c' to clear the buffer.

mysql>

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Step 4 : updating new password for mysql root

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• use mysql
• update user set password=PASSWORD("yournewpassword") where user='root';
• flush privileges
• quit

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Step 5 : Stop and Start the mysql

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/etc/init.d/mysql stop

/etc/init.d/mysql start

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Step 6 : login to mysql with new password

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mysql -u root -p yournewpassword

No Live Calls Waiting Vicidial / Goautodial

Below are the possible causes and solution to get rid of this issue.

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Option 1: Hopper Issue

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• Check the Leads in Hopper under the respective Campaign
• Set the Hopper Level minimum to 500.

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Option 2:  Improper Dial Status
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• Check the dial statuses included in the Campaign 
• If the new leads are to be dialled then make sure   Dial Status NEW must be added
• If you are redialing the Leads , then make sure the respective List is resetted and the  respective dial statuses(BUSY,NA,PM) are added in Campaign

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Option 3: Hard Disk issue

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• Due to insufficient space in Hard disk you might face this issue
• type df -h in linux shell to check the freespace in the system harddisk
• if Hard disk shows full (0%)  then you have to free up the space or increase the disk size. you might delete the recording from the below folder

          /var/spool/asterisk/monitorDONE/ORIG

     /var/spool/asterisk/monitorDONE/MP3  or WAV or GSM

• Once Deleting or Increasing the size of the Hard disk , repair your mysql, it might also crashed due to insufficient space , below is the command 

    mysqlcheck -u root -p --auto-repair --check --optimize --all-databases

     click here for details on mysql repair

• reboot

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Option 4: Server Crash due to Power Outage ,

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• Due to improper shutdown or due to power outage  the Mysql might get Crashed, as said above run the mysql repair command and reboot the system

       mysqlcheck -u root -p --auto-repair --check --optimize --all-databases

   click here for details on mysql repair

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Option 5: Call Time issue,

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• Check the Local Call Time set in the Campaign.
• if not sure about Local Call Tim,  set the  Local Call Time to 24hrs

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Option 6: NULL status junk in Mysql ,

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• Delete NULL status in the mysql vicidial_auto_calls tables
• follow the below step to delete

            mysql -p

            password:  (if it is goautodial then vicidialnow is the password,  vicibox: vicidial)

            mysql> use asterisk

     mysql> DELETE FROM vicidial_auto_calls where channel IS NULL

• reboot the machine 

how to remove or uninstall asterisk

 It is sometimes necessary to completely remove asterisk ,for reasons like installing the latest version or reinstall the same version, below blog will lead you for the same.

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Step 1: Stopping the asterisk and unload its modules

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       The first thing you have to do is to stop asterisk and unload the modules 

the following commans will terminate the asterisk and kill all the ongoing conversation

killall -9 safe_asterisk
killall -9 asterisk

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Step 2 : deleting the asterisk files

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       By running the below command , you will delte with no possible recovery ,so if any thing important like asterisk dialplans, carriers settings, recordings, take a backup

rm -rf /etc/asterisk
rm -rf /var/log/asterisk
rm -rf /var/lib/asterisk
rm -rf /var/spool/asterisk
rm -rf /usr/lib/asterisk

Now asterisk has been removed completely from your system

SIP / VOIP nat solution with SIP ALG in various routers and firewall

SIP / VOIP  Nat Support in Routers and Firewalls (SIP ALG)

ATTENTION: The settings and potential configurations for equipment found on this page are provided for your benefit and may not necessarily reflect the same hardware, firmware, version, make or model of equipment you are attempting to implement or configure on your network.

Overview

The following list provides information about routers and firewalls and their ability to support VoIP. Suggested configurations should be used to prevent issues with VoIP traffic on your network, but do not represent all possible configuration options. Some equipment is incompatible with VoIP and as such requires replacement.

VOIP/SIP vs NAT 

The problem with VoIP and NAT is that both ends of the conversation have to be able to initiate a connection to each other. Consider the simplified sequence of events that happens when PhoneA calls PhoneB using their respective SIP servers, PBXA and PBXB.

• PBXA sends a SIP invitation to PBXB on PhoneA's behalf. In this invitation, it is PhoneA's IP address.

• PBXB invites PhoneB to the conversation specifying PhoneA's IP address as the other end.

• If PhoneB accepts the call, PBXB responds to PBXA with an acknowledgment that includes PhoneB's IP address.

• PBXA tells PhoneA about PhoneB.

• PhoneA sends audio using the Real-Time Protocol (RTP) to PhoneB.

• PhoneB sends audio using RTP to PhoneA.

NAT can cause problems in several places. If one of the PBXes is behind a NAT gateway, the other PBX won't be able to contact it without some additional network setup. If one or more of the phones are behind a NAT gateway, the other phone will be trying to send audio to a non-routable address. This results in failed calls or missing audio.

General Settings

SIP ALG (Application Layer Gateway) and SPI (Stateful Packet Inspection) need to be disabled on most routers and firewalls, if equipped. This is usually found on theSecurity/Firewall tab in the device’s web interface. In cases where the router or firewall does not have these options or the options cannot be disabled, you may have to exchange the equipment for something more compatible.

Small Office / Home Office Routers

The following devices will often work with our service when properly configured. Please consult a network professional to ensure these settings are in place

Manufacturer	Model	Features	Setup and Notes
Apple Airport Extreme	A1354, A1408, A1521		No changes necessary Replace if Wireless G Model
Cisco	RV042/RV082/RV016	Dual WAN, 4/8/16 ports	Disable load balancing
Cisco	RV120		Disable Attack Checks, Disable SIP ALG, Replace
Cisco	RV180W	Best Effort, Gigabit Ethernet, VPN, Wireless N	Disable SIP ALG, Create Outbound Access rule for phones
Cisco	WVR210-A v1		Check for new firmware, Disable SIP ALG and SPI Firewall. Replace.
Cisco / Linksys	E4200 v1	Dual-Band, Wireless N, Gigabit	Turn off SPI Firewall and SIP ALG
D-Link	DIR655 Rev A		Disable SIP ALG
D-Link	EBR2310	Wired Router	Disable SIP ALG and SPI Firewall
D-Link	EBR2310 Rev C		Enable SIP ALG, replace.
D-Link	WBR2310	Wireless-G	No changes necessary.
Linksys	E900		Disable SIP ALG and SPI Firewall
Linksys	E2500		Disable SIP ALG and SPI Firewall
Linksys	E3200 v1	802.11a/b/g/n	Disable SIP ALG and SPI Firewall
Linksys	E3500
Linksys	EA4500 v1	Gigabit, Wireless N	Disable SIP ALG and SPI Firewall
Linksys	EA6900		Disable SIP ALG and SPI Firewall
Linksys	RV042 RV082	Dual WAN, 4 ports	Disable SIP ALG and SPI Firewall
Linksys	RVS210		Only 4 phones can register. Replace if more than 4 phones needed.
Linksys	WRT54G Series	802.11b/g	Compatibility varies depending on Model and Hardware Version.See Details
Linksys	WRT610N		Upgrade to latest firmwareDisable SIP ALG and SPI Firewall
MikroTik	Any		Disable SIP ALG
Netgear	DG834G	DSL Modem/Router	Disable SIP ALG, DoS and Port Scan Protection
Netgear	FVG318		Disable SIP ALG. If issues continue, update firmware.
Netgear	FVS318		Try to disable SIP ALG and SPI Firewall.
Netgear	FVS336G		Update firmware and Disable SIP ALG
Netgear	R6300 v1	Gigabit, AC1750, Dual Band	Update firmware and Disable SIP ALG and Port Scan and DoS Protection
Netgear	WGR614	Wireless-G	Disable SIP ALG and Port Scan and DoS Protection (Hardware Version V8 and newer only)
Netgear	WNDR3300	N300, Dual Band	Disable SIP ALG and Port Scan and DoS Protection
Netgear	WNDR3400	N600, Dual Band	Disable SIP ALG and Port Scan and DoS Protection
Netgear	WNDR3700 v1 v3 v4	Gigabit, Wireless N, USB NAS Capability	Disable SIP ALG and Port Scan and DoS Protection
Netgear	WNR1000 v2 v3		Disable SIP ALG and Port Scan and DoS Protection. Update firmware.
Netgear	WNR2000 v2 v3		Disable SIP ALG and Port Scan and DoS Protection
Netgear	WNR3500L	N300	Disable SIP ALG and Port Scan and DoS Protection
WesternDigital	MyNet N600	Dual Band, Wireless N, Hard Drive	Disable SIP ALG

Modem/Router Gateway Devices

These devices are typically provided by an internet service provider. If the phones experience issues with registration and transfers, look first to disable SIP ALG or SPI Firewall settings. In the event that these settings aren’t available, most Modem/Router Gateways require bridging or replacement. Please see below for more details.

Manufacturer	Model	Features	Setup and Notes
2Wire	Any		Disable SIP ALG and Attack Detection
Actiontec	GT704-WG-B, Most Models		Disable SIP ALG and SPI Firewall. If not present, Bridge device and use a third-party router.
Actiontec	PK5000		Disable SIP ALG at http://192.168.0.1/support/utilites (IP address may be different). Disable SIP ALG & SPI firewall. Or put into Bridge Mode.
Ambit/Ubee	U10C037, Any		Put into Bridge Mode/ replace. Incompatible with SIP
Calyptix	Any		Requires ISP Configuration
Clear		Modem/Router	Disable firewall and set to pass-through mode.
Comtrend	Any		Disable SIP ALG in web interface, pictures here
EdgeMarc	Most Models		Remove option 66 settings. Remove SIP Server Address.
Motorola	3360		Set Passthrough.
Motorola	2210 (MSTATEA)		Set Passthrough.
Motorola	NVG510 (Uverse)		Not Recommended. Set Passthrough.
Motorola	NVG589 (Uverse)		Disable SIP ALG and Firewall settings. Set Passthrough mode.
Motorola	SBG6580		Disable SIP ALG and set Pass-through mode. Update Firmware to 3.3 (requires ISP support)
Motorola	SBG901		Bridge
Motorola	SBG941		Bridge
Motorola	Surfboard		Running firmware v3.3 or higher. Disable SIP ALG.
Netgear	7550		Netgear 7550Modem/Router Combo AT&T Uses this
Netopia	Any, 3000		Disable SIP ALG
Pace	Pace (Uverse)		Disable Attack Detection and Set Pass-through. Create custom service to allow SIP traffic for ports 5060-5080.
Siemens	SpeedStream 4200		Disable SIP ALG in NAT tab
Siemens	SpeedStream 5100		Put in Bridge Mode and use a recommended router.
SMC	3100		Bridge
SMC	8014		Turn off Smart Packet Detection. Put into Bridge Mode.
SMC	D3G		Bridge
Technicolor	TC8305C		Requires DMZ and Compatible Router
U-Verse	2-wire, Netgear, Pace, Other		Use Third-Party Router in DMZ
Westell	A90, B90, Most Models		Put into Bridge Mode.
ZHONE	Any		Disable SIP ALG, Use Third-Party Router in DMZ
ZyXEL	P-660HW		Disable SIP ALG
ZyXEL	P792H v2		Disable SIP ALG
ZyXEL	PK5001Z (Qwest, CenturyLink)		Use telnet to disable SIP ALG

Enterprise Equipment & Firewalls

Enterprise Equipment and Firewalls typically have rules restricting access to the network. It is important that the traffic destined for Vonage Business phones is not blocked. Please see below for details for your specific device.

Manufacturer	Model	Features	Setup and Notes
Adtran	Netvanta		Disable SIP ALG
Cisco	All Enterprise-level devices		See Recommendations
Cyberoam	Any		Create Firewall Exception Rules
DrayTek Vigor	Any		SIP ALG must be turned off.
Firebox	Any		Disable SIP ALG, Create access rules.
FortiGate	FortiNet, Any		Disable SIP Helper.
Juniper	NetScreen		Disable SIP ALG and UDP Flood Protection
Netgear	ProSafe VPN Firewall		Update to firmware 3.0.6-25 and disable SIP ALG
Peplink	Any		Set SIP Pass-through to Standard Mode
Samsung	Ubigate iBG1000		Requires ISP Configuration – Disable SIP ALG.
SonicWALL	Any		Disable SIP ALG, Enable Consistent NAT, and Create access rules (if necessary).
ZyXEL	ZyWALL 5, ZyWall USG 50/80/100		Disable SIP ALG, Check for new firmware.

Incompatible Network Equipment

The following devices are known to be incompatible with SIP or VoIP. These devices must typically be replaced.

Manufacturer	Model	Issues	Potential Solutions
Apple	Airport Extreme Wireless G Model	Doesn’t allow phones to Register	Replace
Apple	Airport Time Capsule	Registration Issues	If problems encountered, Replace, Bridge.
Arris	TM502G	Registration Issues	Reboot by removing battery. If no improvement, replace.
Asus	RT-N10, RT-N66U	Dropped Calls, Registration issues with old firmware	Check for new firmware, Disable SIP ALG
Belkin	F5D, F6D, F7D, FDS, and F9K Series, Any	Intermittent One Way Audio	Restart, issue will return with time. Check for new firmware/Replace
Cisco	DPC3939	SIP ALG cannot be disabled and still has issues after bridging	Replace
D-Link	DIR-601	One-way audio	Check for new firmware/Replace
D-Link	DIR615, DIR600	On Firmware 3.X, SIP ALG must be enabled for phone to register. When enabled, it mangles SIP traffic.	Check for new firmware/Replace
D-Link	DIR-628, DIR-825, DIR-835	Current firmware version is Incompatible with SIP	Check for new firmware/Replace
D-Link	DIR655 Rev B (or newer)	SIP problems	Check for new firmware/Replace.
Linksys	BEFSR Series (BEFSR41, BEFSR81, BEFSRX1, etc.)	Phones Can’t Register or Transfer	Check for new firmware/Replace
Linksys	E1200	Internet Connection problems.	Disable SIP ALG and SPI Firewall. Replace if issues persist.
Linksys	E3000	No-way audio	Check for new firmware/Replace
Linksys	RVS4000	One Way Audio after Attended Transfers	Check for new firmware/Replace
Linksys	WRT110N, WRT120N, WRT160N, WRT320N, WRT350N	Dropped calls, Transfer issues, Registrations issues, No SIP ALG option	Check for new firmware/Replace
Linksys	WRT55AG	Various issues.	Use third-party router in DMZ or replace.
Linksys	WRT54Gv1-4, WRT54G2, WRT54GL	Various, Doesn’t allow phones to Register or Transfer	Check for new firmware/Replace.
Linksys	WRTU54G-TM v1	Various issues.	Check for new firmware/Replace.
Linksys	WRV54G	Various issues.	Check for new firmware/Replace.
Linksys	WRV200, WRV210	Registration, loss of audio after transfers, and dropped calls	Check for new firmware/Replace
Linksys	WRV210	Various issues.	Check for new firmware/Replace.
Netgear	CG814WCOM, CG814WG, CG814WT	Modem/Router Gateway w/ Proprietary Firmware	Bridge/Replace
Netgear	CGD24G	Modem/Router Gateway w/ Proprietary Firmware, CD, 1WA	Bridge/Replace
Netgear	FVS318	SIP ALG cannot be disabled, various quality problems. Avoid	Check for new firmware/Replace
Netgear	CG3000	Modem/Router Gateway w/ Proprietary Firmware	Bridge/Replace
Netgear	WGR614 v1-v7	No SIP ALG option. Registration issues.	Incompatible. Replace.
Netgear	WGT624	one-way/no-way audio and dropped calls.	Check for new firmware/Replace
Netgear	WNDR3700 v2	Failed registrations. Stripped nonce.	Check for new firmware/Replace
Netgear	WNDR4000 v1	Transfer issues, Dropped calls, Dropped calls on hold	Check for new firmware/Replace
Netgear	WNR1000 v1	No SIP ALG option. Registration issues.	Check for new firmware/Replace
Netgear	WNR2000 v.1	Incompatible, SIP Ringing message never arrives	Check for new firmware/Replace
Netgear	WNR2500	Registration issues, one-way audio	Check for new firmware/Replace
Netgear	WNR3500	Incompatible with SIP	If v1, try firmware 1.0.15. Disable SIP ALG and SPI. Replace
Netgear	WNR834B v.2	Drops Transfers (Attended)	Check for new firmware/Replace
Tenda	Any	Various issues.	Replace
Thomson	DWG-855	Various issues	Disable SIP ALG. Check for new firmware. Replace
Thomson	TG585 v8	Various issues	Disable SIP ALG. Check for new firmware. Replace
Thomson	TG587n v2-v7	Various issues	Disable SIP ALG. Check for new firmware. Replace
TP-Link	TL-WR741N v2	Various issues.	Check for new firmware. Replace.
TRENDnet	TEW-639GR	Various issues.	Check for new firmware. Replace.
TRENDnet	TEW-652	Various issues.	Use Third-Party Router in