3.2.4.1 Allocating Public Transport Addresses
When a protocol client is ready to allocate public transport addresses, it MUST follow the procedure as specified in this section. This procedure replaces [IETFDRAFT-TURN-08] section 8.2 and supplements section 8.3 and is explained in detail in section 3.1.12.
The protocol client MUST send an initial Allocate request message to the TURN server.
The request MUST be formed as specified in section 3.1.8.
The request SHOULD include the MS-Version attribute, as specified in section 2.2.2.17.
If the MS-Version attribute is included, the value has to be greater than "0x0004" (4) if Multiplexed TURN allocation is desired:<25>
The request SHOULD include the MS-Service Quality attribute, as specified in section 2.2.2.22.<26>
The request MUST NOT include a Message Integrity attribute.