# NP Fax - Conditions

In addition to the following conditions, refer to the NuPoint Unified Messaging Engineering Guidelines for recommendations about implementing a Fax solution.

- The system must have a fax group assigned to an outbound line group to deliver faxes send faxes. Additionally, a “fax pager index” must be set in the user’s mailbox.

- The system must have a fax group assigned to an inbound line group to receive faxes.

- The Fax feature supports fax reception from G3-compliant fax machines that produce CNG tone.

- To minimize packet loss and jitter, it is recommended that the NuPoint Unified Messaging server be connected to the PBX or MiVoice Business Gateway via one hop only.

- NuPoint Fax can be configured on any NuPoint UM server. Note that Fax only operates on the active server in an Active/Passive configuration.

- A maximum of six Fax channels can be configured on a NuPoint Unified Messaging server.

- If all six Fax channels are in use when a user is sending a fax, the fax is queued for re-try. When an outside caller sends a fax and all channels are busy, that caller receives an "unsuccessful transmission" message.

- You must have an Internet connection to use Fax with the Web View interface (requires a Web session).

- NP View is not supported for use with NuPoint Fax.

- NuPoint Unified Messaging does not support a specific TIFF or PDF viewer for reading faxes. If a user has difficulty reading faxes with a viewer, it is recommended that they refer to the help documentation for that viewer or try using a different viewer.

- Apple QuickTime Player is not supported within the Web View interface for users to display fax .tif files. It is recommended that Quick-Time be configured not to play .tif files, on the user's PC. For this procedure, refer to the Web View Help.

- Tenanting: Each tenant has their own line groups. Each may also need to have their own fax DID. This can be accommodated by one or more fax groups since one fax group can be associated with many line groups. Keep in mind that there are only 6 fax channels on one server that can be shared.

- Migration of Fax from a NuPoint Messaging Release 7.0 system is supported; however, as with line groups, fax group definitions are not migrated and must be reprogrammed manually. Note that all fax ports must be configured in the range of 5:0 to 5:5. The Cover Page FCOS is supported after conversion. Migration from a Release 7.0 system will handle all FCOS relating to inbound Fax features. For more information about migrating from a Release 7.0 system, see the NuPoint Unified Messaging Technician's Handbook.

- Fax messages are supported in the NuPoint Unified Messaging system backup and restore operations.

- The Event Recorder will contain all Fax-related error messages. For more information about Event Recorder, see the NuPoint Unified Messaging Technician's Handbook.

- NuPoint UM does not support the use of the NP Fax feature as a fax server.