Transport Layer Protocols; Sip Security; Authentication; Sip Dns Records Usage - Cisco SIP IP Phone Administrator's Manual

Appendix A SIP Compliance with RFC 3261 Information
SDP Headers
m—Media name and transport
address
a—Media attribute lines

Transport Layer Protocols

Protocol
Unicast UDP
Multicast UDP
TCP

SIP Security

Authentication

Basic Authentication
Digest Authentication
Proxy Authentication
PGP

SIP DNS Records Usage

DNS Resource Record Type
Type A
Type SRV

SIP DTMF Digit Transport

Transport Type
RFC 2833
In-band tones
Supported?
Yes
Yes
Supported?
Yes
No
No
No
Yes
No
No
Supported?
Yes
Yes
Supported?
Yes
Yes
Transport Layer Protocols
Cisco SIP IP Phone Administrator Guide
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