PHP Extensions

Following extensions should be enabled for your PHP setup      
LibraryRequirement
GDMandatory
IMAPMandatory
ZlibMandatory
SMTPMandatory
CURLMandatory
mbstringMandatory

It is recommended to have php.ini values set as below. You still proceed with the installation if php.ini requirements are not met. This can be adjusted later. If you face any issues with CTMobile extension installation/activation - you should then update your php.ini to recommended settings.        
Minimum RequirementRecommended Value
default_socket_timeout60600
max_execution_time60600
max_input_time60600
memory_limit256M1024M
post_max_size12M50M
upload_max_filesize12M50M
max_input_vars1000010000