Udp Transport Layer For Sip; Support For Sip Without Preconditions; Sip Support For Line To Packet Trunk Calls; Sip Without Encapsulated Isup - Lucent Technologies 5ESS Manual

SIP for Packet Trunking
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235-200-118
Issue 3.02B, March 2007
ISUP originating terminal process (OTP). The ISUP OTP will send an
ACM message out to the ISUP network. This prevents the call from
being terminated by the ISUP office because the TPS response was
too slow.
The features that follow enhance the capabilities provided by the SIP
for Packet Trunking feature (99-5E-8382). Feature descriptions for
these features can be found in the Feature Descriptions, 235-190-400
document.

UDP Transport Layer for SIP

The UDP Transport Layer for SIP (99-5E-8581) feature allows the
™
5E-XC to support SIP with a UDP transport layer instead of SCTP,
™
allowing the 5E-XC
support SCTP.

Support for SIP without Preconditions

The Support for SIP without Preconditions (99-5E-8582) feature
allows SIP calls to be established without the precondition procedures
that were initially required by the SIP for Packet Trunking feature. For
additional information about SIP signaling procedures, with or without
preconditions, see the Session Initiation Protocol (SIP) - Interface
Specification, 235-900-344 document.

SIP Support for Line to Packet Trunk Calls

The SIP Support for Line to Packet Trunk Calls (99-5E-8583) feature
allows analog and ISDN line originations and terminations to be
routed to and from SIP packet groups, in addition to the circuit trunk
originations and terminations initially supported by the SIP for Packet
Trunking feature.

SIP without Encapsulated ISUP

The SIP without Encapsulated ISUP (99-5E-8587) feature allows the
™
5E-XC to interwork with elements that do not generate and process
ISUP messages and to generate appropriate interworking messages to
pass through the network. The 5E-XC
Encapsulated ISUP on a per packet group basis.

SIP Enhancements to Support PSTN Gateway Phase 1

The SIP Enhancements to Support PSTN Gateway Phase 1
(99-5E-8658) feature provides a series of enhancements that allow
phone calls to be setup between PSTN subscribers and IP subscribers
that terminate to a Telephone Application Server (TAS). The PSTN
Lucent Technologies
to connect to SIP network elements that do not
™
supports SIP without
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