3Com VCX v7111 User Manual page 23

Supports RFC 3966, The tel URI for Telephone Numbers.
Supports RFC 4244, An Extension to SIP for Request History Information.
Supports Tel URI (Uniform Resource Identifier) according to RFC 2806 bis.
Supports ITU V.152 - Procedures for supporting Voice-Band Data over IP Networks.
Remote party ID <draft-ietf-sip-privacy-04.txt>.
Supports obtaining Proxy Domain Name(s) from DHCP (Dynamic Host Control Protocol)
according to RFC 3361.
Supports handling forking proxy multiple responses.
RFC 2833 Relay for DTMF Digits, including payload type negotiation.
DTMF out-of-band transfer using:
INFO method <draft-choudhuri-sip-info-digit-00.txt>
NOTIFY method <draft-mahy-sipping-signaled-digits-01.txt>
SIP URL: sip:"phone number"@IP address (such as
"122556" is the phone number of the source or destination phone number) or
sip:"phone_number"@"domain name", such as 122556@myproxy.com. Note that the
SIP URI host name can be configured differently per called number.
Supports RFC 4040, RTP payload format for 64 kbit/s transparent data.
Can negotiate coder from a list of given coders.
Supports negotiation of dynamic payload types.
Supports multiple ptime values per coder.
Supports RFC 3389, RTP Payload for Comfort Noise.
Supports RFC 3824, Using E.164 numbers with SIP (ENUM).
Supports reception and DNS resolution of FQDNs received in SDP.
Supports <draft-ietf-sip-gruu-09>, Obtaining and Using Globally Routable User Agent
(UA) URIs (GRUU) in SIP.
Responds to OPTIONS messages both outside a SIP dialog and in mid-call. Generates
SIP OPTIONS messages as Proxy keep-alive mechanism.
Publishes the total number of free Tel channels in a 200 OK response to an OPTIONS
requests.
Implementation of MWI IETF <draft-ietf-sipping-mwi-04.txt>, including SUBSCRIBE (to
the MWI server). The MediaPack FXS gateways can accept an MWI NOTIFY message
that indicates waiting messages or indicates that the MWI is cleared.
®
3Com VCX V7111 VoIP Gateway User Guide
1225556@10.1.2.4
, where
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