AASTRA 6700i series, 9143, 9480i, 9480i CT SIP Administrator Guide EN User Manual

Page 631

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6-4

41-001343-01 Rev 03, Release 3.2.2

802.1x Support

Allows you to enable or disable the 802.1x Protocol support on the IP
Phones.

Symmetric UDP Signaling

Allows you to enable or disable the phone to use port 5060 to send SIP
UDP messages.

Removing UserAgent and Server SIP
Headers

Allows you to enable or disable the addition of the User-Agent and
Server SIP headers in the SIP stack.

GRUU and sip.instance Support

The IP phones provide GRUU support using draft-ietf-sip-gruu-15. A
sip.instance is added to all non-GRUU contacts.

Multi-Stage Digit Collection (Billing Codes)
Support (for Sylantro Servers)

IP Phones support Sylantro Server features, like mandatory and
optional billing codes that require the application server to notify the
phone to collect more digits before completing the call. The IP phone is
able to collect digits in two stages to support the billing code feature.

Configurable DNS Queries

Allows you to specify the Domain Name Service (DNS) query method to
use when the phone performs a DNS lookup.

Ignore Out of Sequence Errors

Allows you to configure the phone to ignore CSeq number errors on all
SIP dialogs on the phone.

“Early-Only” Parameter in Replaces Header
RFC3891

The phones support the “early-only” parameter in the “Replaces” header
according to RFC3891.

Switching Between Early Media and Local
Ringing

The phones support switching between early media and local ring tone.

Enable Microphone During Early Media

Allows you to enable or disable the microphone during early media.

“Call-Info” Header to 200ok Responses for
Shared Call Appearance (SCA) Lines

In Release 2.6 and up, a “Call-Info” header is included in the 200ok
response to an INVITE, RE-INVITE, and UPDATE messages for SCA
lines.

Reason Header Field in SIP Message

The IP Phones support the receiving of the Reason Header Field in a
SIP CANCEL message, as described in RFC3326.

Configurable “Allow” and “Allow-Event”
Optional Headers

On the IP Phones, an Administrator can enable or disable whether or
not the optional “Allow” and “Allow-Events” headers are included in the
NOTIFY message from the phone.

Configurable SIP P-Asserted Identity (PAI)

The IP Phones support a private extension to SIP for Asserted Identity
within trusted networks (as defined in RFC 3325).

Configurable Route Header in SIP Packet

The IP Phones support a parameter that enables or disables the
addition of the Route header in a SIP packet.

Configurable Compact SIP Header

The phones provide a feature that allows an Administrator to shorten the
length of a SIP packet by using the compact form. This feature is in
accordance with Compact SIP Headers defined in RFC 3261.

Reject INV or BYE when Unsupported Value
in REQUIRE Header

The IP Phones support a parameter that allows you to enable or disable
the rejection of an INV or BYE with a “420 Bad Extension” if the INV or
BYE contains an unsupported value in the REQUIRE header.

XML URI for Key Press Simulation

The phones provide a feature that allow an XML Developer or
Administrator to define XML Key URIs that can send key press events to
the phone, just as if the physical hard key, softkey, or programmable key
were pressed on the phone.

Feature

Description

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