Magento: Get store contact telephone

That’s a Core configuration, so it’s saved in core_config_data table, and the phone information is the field:

general/store_information/phone

So, all you need is to read the configuration data as

$storePhone = Mage::getStoreConfig('general/store_information/phone');

For CMS pages insert the following variable:

{{config path="general/store_information/phone"}}

You can find more info on this here, and you can always do the reverse programmatically