AT&T Synapse SB67070 SIP Bedienungsanleitung PDF herunterladen (Seite 3)

SIP Trunking Test Results for Synapse SB67070 SIP Gateway from AT&T

Page 3 of 13

1 Executive Summary

This report provides the test results found to date for the Synapse SB67070 SIP Gateway

evaluation. The following is a summary of the issues and limitations found while performing

the test.

Issues/Limitations

Outbound Caller ID Blocking not supported

Call Forward Busy to PSTN from PSTN not supported

Call Forward Busy to Ext from PSTN not supported

Call Transfer to PSTN—blind and consult not supported using SIP REFER, but it works

based on re-INVITE.

Unsupported SIP Trunk Features

G.722 and G.722.1 codecs

RTCP Sender Reports

Configurable ptime for G.729 (RFC 3264)

CoS tagging

Compressed RTP (cRTP)

Passing Calling Number marked private

Outbound Call Hold & Resume

408 error fail-over

T.38 Fax is not supported, but fax works with G.711 pass-through

Miscellaneous Unsupported SIP Features

SIP Asserted Identity (RFC 3325)

SIP Diversion information

SIP Session timers (RFC 4028)

SIP REDIRECT

SIP REFER (RFC 3515)

SIP Referred-By header (RFC 3892)

SIP SUBSCRIBE/NOTIFY (RFC 3265)

SIP proprietary header for data forwarding

Presentation-Restricted status (RFC 3325)

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AT&T Synapse SB67070 SIP Bedienungsanleitung Seite 3