Methods, devices, and systems are provided for negotiating the usage of a binary object representation of SIP messages. More specifically, the negotiation for the binary SIP transmission can be done by exchanging text-based SIP messages or other similar messages over standard SIP connection channels. If the negotiation is successful, then binary SIP messaging may be employed to enhance the ease and efficiency with which a SIP message is generated, transmitted over a communication network, and parsed/processed by a SIP network element.