SpectraLink i640 - Manual (Page 5)

SpectraLink Corporation SIP User Agent: Features and Standards
3. RFC 3261 Compliance
Feature Supported?
Transport:
UDP Yes
UDP retransmit timers Yes
UDP multicast No
TCP Yes
TLS No
IPv6 No
Fatal transport errs treated as 503
responses.
No, 30 second timeout instead.
Loop detection No, From tag, callId, and Cseq match but no dialog match. – 482 resp.
Method processing:
Unsupported method response Yes, 501
Include “Allow” with all INVITEs Yes
Include “Supported” with all
INVITEs
Yes
Include “Accept” with all INVITEs Yes
Forked calls per RFC 3264 Yes
405 response to recognized but
unsupported method.
No
OPTIONS method resp should have
Accept header.
Yes
INVITE keep alive if no final response
(resend provisional response).
No.
All requests can be challenged. Partial, REGISTER and INVITE only can be challenged.
Header processing:
Compact forms Yes
Repeated headers Yes for Via, Contact, Record-Route, Route, Proxy-Authenticate. Not for
WWW-Authenticate.
Case sensitivity Yes for quoted strings, tags
Case insensitivity Yes for header names, methods, tokens, parameters.
Line wrapping Yes
UTF8 char set No, UTF8 strings are handled as identifiers, only US ASCII chars are
displayed.
Via header in all responses Yes
Via header sentby in IP format Yes
Ignore unsupported headers Yes
Reject response with more than one
via header.
No
Allow whitespace in header parsing Yes
Via header support maddr and ttl No
URIs:
Name/Address forms Yes
sips: forms No
tel: forms No
user=phone forms No
Escape/unescape URIs as
parameters
Yes only for Refer-To: parameters.
Security:
User Authentication Yes, Digest
Proxy Authentication Yes, Digest credentials are not yet cached
Transport level security (TLS) No
SIP Proxies:
Proxy discovery methods No
Part Number: 72-1089-01-C.doc Page 5