SMS API version 1.2 & Clickatell version 2 extensions were added. Clickatell was set as an SMS Provider. Clickatell was working with version 1 of the extension and 4.5.8 of civicrm.
When sending the sms, there is no indication of a failure, it just never gets sent.
Log file output - 2015-06-16 21:30:02 Send Scheduled SMS
Entity: Job Action: process_sms
Summary
Finished execution of Send Scheduled SMS with result: Success (a:0:{})
Details
Parameters parsed (and passed to API method): a:1:{s:7:"version";i:3;}
Full message: Finished execution of Send Scheduled SMS with result: Success (a:0:{})
LOG FILE-
Jun 16 22:45:02 [info] $INSERT INTO civicrm_job_log (domain_id , description ) VALUES ( 1 , 'Finishing scheduled jobs execution.' ) = #0 /home/depot/public_html/drupal/sites/all/modules/civicrm/CRM/Core/Error.php(608): CRM_Core_Error::backtrace("INSERT INTO civicrm_job_log (domain_id , description ) VALUES ( 1 , 'Finishin...", TRUE)
#1 /home/depot/public_html/drupal/sites/all/modules/civicrm/packages/DB/DataObject.php(2380): CRM_Core_Error::debug_query("INSERT INTO civicrm_job_log (domain_id , description ) VALUES ( 1 , 'Finishin...")
#2 /home/depot/public_html/drupal/sites/all/modules/civicrm/packages/DB/DataObject.php(1060): DB_DataObject->_query("INSERT INTO civicrm_job_log (domain_id , description ) VALUES ( 1 , 'Finishin...")
#3 /home/depot/public_html/drupal/sites/all/modules/civicrm/CRM/Core/DAO.php(450): DB_DataObject->insert()
#4 /home/depot/public_html/drupal/sites/all/modules/civicrm/CRM/Core/JobManager.php(237): CRM_Core_DAO->save()
#5 /home/depot/public_html/drupal/sites/all/modules/civicrm/CRM/Core/JobManager.php(87): CRM_Core_JobManager->logEntry("Finishing scheduled jobs execution.")
#6 /home/depot/public_html/drupal/sites/all/modules/civicrm/api/v3/Job.php(99): CRM_Core_JobManager->execute(FALSE)
#7 /home/depot/public_html/drupal/sites/all/modules/civicrm/Civi/API/Provider/MagicFunctionProvider.php(89): civicrm_api3_job_execute((Array:2))
#8 /home/depot/public_html/drupal/sites/all/modules/civicrm/Civi/API/Kernel.php(96): Civi\API\Provider\MagicFunctionProvider->invoke((Array:9))
#9 /home/depot/public_html/drupal/sites/all/modules/civicrm/api/api.php(23): Civi\API\Kernel->run("job", "execute", (Array:2), NULL)
#10 /home/depot/public_html/drupal/sites/all/modules/civicrm/drupal/drush/civicrm.drush.inc(1533): civicrm_api("job", "execute", (Array:2))
#11 [internal function](): drush_civicrm_api("job.execute", "auth=0")
#12 /usr/bin/drush-4.x/includes/command.inc(131): call_user_func_array("drush_civicrm_api", (Array:2))
#13 /usr/bin/drush-4.x/includes/command.inc(836): _drush_invoke_args("civicrm-api", (Array:2), "civicrm")
#14 [internal function](): drush_command("job.execute", "auth=0")
#15 /usr/bin/drush-4.x/includes/command.inc(236): call_user_func_array("drush_command", (Array:2))
#16 /usr/bin/drush-4.x/drush.php(101): drush_dispatch((Array:22))
#17 /usr/bin/drush-4.x/drush.php(41): drush_main()
#18 {main}