This is the first chapter from our 3 days "SIP Advanced" course. For more information about the course please visit our website: https://apistraining.com/portfolio_category/sip-ims-and-volte-training/
Apis Training is a leading technology training provider to the mobile telecom industry. Our head office is based in Sweden and we are operating globally.
Go to our website: http://www.apistraining.com for more information.