Samsung Ubigate iBG3026, Configuration Manual, Page: 396 / 718

CHAPTER 28. SIP Gateway Management
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© SAMSUNG Electronics Co., Ltd.
Support for a variety of interfaces, including
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Analog interfaces: Foreign Exchange Station(FXS)/Foreign Exchange
Office(FXO)/recEive and transMit(E & M) analog interfaces.
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Digital interfaces: T1 CAS, T1 PRI, E1 CAS, E1 PRI, and E1 R2
Support for SIP redirection messages and interaction with SIP proxies.
The gateway can redirect an unanswered call to another SIP gateway or SIP-
enabled IP phone. In addition, the gateway supports proxy-routed calls.
Support for SIP over TCP and User Datagram Protocol(UDP).
Support RTP/RTCP for media transport in VoIP networks.
Support for the following codecs:
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G711ulaw
−
G711alaw
−
G723
−
G726-32
−
G729
Support for record-route headers.
Support for IP quality of service(QoS) and IP precedence.
Support S/MIME, SRTP, IP Security(IPSec) for secure SIP signaling.
Authentication, authorization, and accounting(AAA) support.
For accounting, the gateway device generates call data record(CDR)
accounting records for export. For authentication, the SIP gateway sends
validation requests to the AAA server. For authorization, the existing access
lists are used.
Support for configurable expiration time for SIP REGISTERs and
maximum number of proxies or redirect servers that can forward a SIP
request.
Ability to hide the identity of the calling party by RFC 3325-Private
Extensions to the Session Initiation Protocol(SIP) for Asserted Identity
within Trusted Networks.
Support for sips uri over TLS.
capability to periodically refresh SIP sessions by sending repeated
UPDATE requests.
Support for QSig inter-working and QSig tunneling over SIP.
Support for the following RFCs and Drafts