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Features that redirect calls (for example, Coverage, Forwarding, Data Hunt Groups, and Night Service) can present problems for 2B data calls. For example, a video system should not be a coverage sender because another video system receiving calls for it can be assigned only one Cover button for the sending extension. Therefore, only one of the calls of a 2B data call is sent to the receiver, and the second call continues to ring at the sending system. (See Feature Interactions for more information.)
When MERLIN MAGIX and/or MERLIN LEGEND, DEFINITY ECS, or DEFINITY ProLogix Solutions Systems are connected in private networks, 2B digital data calls across these networks can take place over PRI tandem trunks or T1-emulated tie data tandem trunks, at speeds up to 128 kbps for PRI or 112 kbps for T1-emulated tie data. If any analog tandem tie trunks are in the communications path, only analog data calls can take place.
MLX modules of firmware vintage 29 are not compatible with 2B data. You must program the feature on a jack whose module is of earlier or later vintage.
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At a Glance | ||||||||
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Considerations & Constraints | ||||||||
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System Programming | ||||||||
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Telephone Differences | ||||||||
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Feature Interactions | ||||||||