Nortel Remote Gateway 9110 Installation And Administration Manual page 48

Remote Gateway 911x Series description
4. Auto Answer Back (AAB) activation on M26xx series digital telephone
sets on Remote Gateway 9100 Series units connected to CS 2100 PBXs
does not produce a dial tone. The digital telephone sets operate properly,
but no dial tone is present. To produce dial tone in this situation, configure
the port on the RLC as a TAPI port.
Notes for M39xx series digital telephone sets:
1. To label the Local Keys on M3902 digital telephone sets, use the options
key on the digital telephone set itself.
2. If you downgrade the host PBX to a release prior to X11 release 25.40, you
must also downgrade any new or upgraded M39xx digital telephone sets so
that the Meridian 1 PBX can support them. This applies to digital telephone
sets attached to Remote Gateway 9100 Series units and Extended Digital
Line Cards.
3. The M3904 digital telephone set Key Map fails using Virtual Office on
Remote Gateway 9100 Series. Upgrade the digital telephone set's firmware
to version 8.3 to resolve this problem.
4. Uploading and downloading M3904 and M3905 firmware requires the
most recent digital telephone set hardware. To resolve problems following
firmware uploads and downloads, including missing functionality, refer to
the User Guide and Release Notes for your particular digital telephone set.
5. Flash upgrade download times to remote M39xx digital telephone sets over
an IP network with low delay and packet loss are comparable to PBX wired
downloads. Using PSTN bandwidth on a Remote Gateway 9150 unit or a
Remote Gateway 911x series unit, download times increase.
24 Remote Gateway 911x Series Installation and Administration Guide
Standard 3.0