100% CPU usage spikes

Hello,
I am new guy in Asterisk. so pl. help me.

I installed Asterisk Server with Billing software. now my prob. is when i push calls to astrisk server getting CPU spikes no dout calls are getting connecting but for few sec. at that movement voice is getting break.
When m checking linux console with TOP command Asterisk is using mostly CPU.
My installation is :

Asterisk : 1.4.29
Ver. 1.4.29
FreePBX : 2.6.0.1

Pl. Help me

check the asterisk log, most of the time it is not rotating. The full log is already a huge file. You will find it at /var/log/asterisk, then check the full log.

Hello,

Thanks for your answer,

i checked log at /var/log/asterisk/full

but there is only warnnings

like


[Feb 18 07:05:16] NOTICE[6160] loader.c: 2 modules will be loaded.
[Feb 18 07:05:16] WARNING[6160] pbx_config.c: The use of ‘_.’ for an extension is strongly discouraged and can have unexpected behavior. Please use ‘X.’ instead at line 383
[Feb 18 07:05:16] WARNING[6160] pbx_config.c: The use of '
.’ for an extension is strongly discouraged and can have unexpected behavior. Please use ‘X.’ instead at line 384
[Feb 18 07:05:16] WARNING[6160] pbx_config.c: The use of '
.’ for an extension is strongly discouraged and can have unexpected behavior. Please use ‘X.’ instead at line 385
[Feb 18 07:05:16] WARNING[6160] pbx_config.c: The use of '
.’ for an extension is strongly discouraged and can have unexpected behavior. Please use ‘X.’ instead at line 415
[Feb 18 07:05:16] WARNING[6160] pbx_config.c: The use of '
.’ for an extension is strongly discouraged and can have unexpected behavior. Please use ‘X.’ instead at line 416
[Feb 18 07:05:16] WARNING[6160] pbx_config.c: The use of '
.’ for an extension is strongly discouraged and can have unexpected behavior. Please use ‘X.’ instead at line 423
[Feb 18 07:05:16] WARNING[6160] pbx_config.c: The use of '
.’ for an extension is strongly discouraged and can have unexpected behavior. Please use ‘X.’ instead at line 424
[Feb 18 07:05:16] WARNING[6160] pbx_config.c: The use of '
.’ for an extension is strongly discouraged and can have unexpected behavior. Please use ‘X.’ instead at line 431
[Feb 18 07:05:16] WARNING[6160] pbx_config.c: The use of '
.’ for an extension is strongly discouraged and can have unexpected behavior. Please use ‘X.’ instead at line 432
[Feb 18 07:05:16] WARNING[6160] pbx_config.c: The use of '
.’ for an extension is strongly discouraged and can have unexpected behavior. Please use ‘X.’ instead at line 9
[Feb 18 07:05:16] WARNING[6160] pbx_config.c: The use of '
.’ for an extension is strongly discouraged and can have unexpected behavior. Please use ‘X.’ instead at line 10
[Feb 18 07:05:16] WARNING[6160] pbx_config.c: The use of '
.’ for an extension is strongly discouraged and can have unexpected behavior. Please use ‘_X.’ instead at line 11

Pl. help

Thanks

surajprakash