Siemens Optiset E Standard phones, available refurbished, for your Siemens Hicom system. Optiset E Standard Features: 12 LEDs/ Keys, 12 Line Appearances, 3 Optiguide Context Sensitive Keys. 2 Volume Keys.
In IT, Short Message Peer-to-Peer (SMPP) is a type of protocol that allows for the transmission of a significant volume of SMS text messages. Typically, SMS text messages go through an SMPP, which can be used to connect external systems to a message center handling high SMS volumes.
Simple Mail Transfer Protocol (SMTP) is the foundation for all e-mail transport in Exchange. The SMTP Service (SMTPSvc) runs on top of the IIS Admin Service. Unlike IMAP4, POP3, NNTP, and HTTP, SMTP in Exchange does not use a separate port for secure communication (SSL), but uses a security sub-system called Transport Layer Security (TLS). SMTP/SSL: TCP: 465: SMTP over SSL. TCP port 465 is reserved by common industry practice for secure SMTP communication using the SSL protocol.