3Com Router 5000 and Router 6000 Family

Release Notes v2.41 • Page 15

3Com VCX 7000 phones do not support SIP outband mode. DTMF digits sent from router 5000/6000 to VCX phones will be disregarded.

Removal of the Master SIP server from a voice configuration will remove the following from the configuration:

oSlave SIP server if one exists

o“address sip proxy” for SIP VoIP entities

Voice is barely audible when an NBX T1 is attached to the router configured running QSIG master (network side). Voice quality is poor over a T1 link when the T1VI module is configured for QSIG master (configured for ISDN network side.). QSIG master functions correctly over E1 using the E1VI module.

The “select-rule type-first” command under the voice/dial view includes an option for VoFR. VoFR is not supported in this release. Make it the last choice in the select list.

The “undo” command does not work for the mode command in the “controller/cas” view. To reset the mode to the default value use the “mode itu-t” command.

By default, voice entities with the same match criteria are chosen at random. To prioritize VOIP entities use the command “select-rule type-first 213” command in the “voice/dial” view.

Voice activity detection (VAD) is only supported when the G.723 codec is used.

CAS is not supported on the T1VI module.

RADIUS authentication and accounting is not supported for H.323.

Only voice traffic is supported on E1 and T1 voice cards. This applies to Router 5000 & 6000 platforms. Data traffic is not supported over Router 5000 and 6000 Voice cards.

FIC Voice Cards are not hot-swappable; these cards must be inserted/removed with the power off.

A short static noise at the tail-end of the audio transmission is experienced when calls are placed across Router 5000 and Router 6000 FXS cards.

The steps to bind the voice MAX-CALL function to a voice entity described in the user guide, is not clear. When configuring voice MAX-CALL you must apply this function inside the voice entity view.

FXS ports do not support modem operations.

All busy signals on voice cards are the same type: fast-busy signal.

One-Stage dialing through POTS may take up to 5 rings before rings are heard on the remote side. Local ringing occurs before the remote side actually hears the rings.

While accessing an outside line (two-stage dialing) the second dial tone takes a little longer than normal to be heard; wait for the second dial tone before proceeding.

Caller-ID Name is not supported; the router does not generate the names tied to a local phone line.

Analog voice quality is will be reduced when using analog lines across three or more routers.

The user’s call forwarding option is not retained after a router reboot; the user must reprogram the call forwarding option after a router reboot to ensure proper forwarding operation.

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3Com manual 3Com Router 5000 and Router 6000 Family

5000, 6000 specifications

The 3Com 6000 series, launched in the late 1990s, was a significant advancement in networking technology, designed to meet the growing demands of enterprise-level networking. This series provided powerful solutions for businesses seeking reliable, efficient, and scalable networking capabilities.

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