Physical SIM Hosting, or Virtual SIM Hosting, is the use of a mobile SIM card to receive and/or send SMS messages. Physical SIM Hosting involves having the SIM card in a GSM modem. Virtual SIM hosting allows SMS sent to the mobile number associated with the hosted SIM, to be passed from the mobile operator's core signalling network to a gateway application, typially using SMPP. SIM hosting allows a customer to use a regular mobile number to send and/or receive SMS, thus enabling the use of a specific mobile number that the customer may prefer. See Melrose Labs Tyr SMS Gateway.
Melrose Labs: Our mission is to deliver pivotal services in cloud communications across mobile, fixed-line and internet for enterprises, SMS aggregators and messaging providers. These services allow organisations to take leaps forward in the services they provide to their customers, their reliability, insight into their services and increased operational efficiency.