9 SIP headers
If SIP headers, specified in the RFC 3261 and RFC 3265, are mandatory
in at least one method, they are integrated in the SPL compiler as
keywords. SIP headers are restricted in terms of type or access rights
(NA, RO, RW). Header keywords refer to request
headers only.
When a header is not mandatory in a request and for all responses, the
when statement allow a protected access to read headers in
messages. Headers can only be modified with the with
expression.
| sipHeader
|
::= |
CALL_ID |
| |
| |
CONTACT |
| |
| |
CSEQ |
| |
| |
EVENT |
| |
| |
FROM |
| |
| |
MAX_FORWARDS |
| |
| |
SUBSCRIPTION_STATE |
| |
| |
TO |
| |
| |
VIA |