When migrating Mitel/ShoreTel IP480g phones from MiVoice Connect to RingCentral MVP, the directory search functionality reverts from predictive single-press search to classic multi-tap text entry.

For example, typing a simple name like "SIMON" on current RingCentral firmware requires:

Hitting 7 four times for S, waiting ~3 seconds

Hitting 4 three times for I, waiting ~3 seconds

Hitting 6 once for M, waiting ~3 seconds

Hitting 6 three times for O, waiting ~3 seconds

Hitting 6 two times for N

On native Mitel firmware, this same query required only 5 single keypresses (7-4-6-6-6). The current multi-tap requirement with timeout delays creates massive dialing friction and delays for users who rely heavily on hardware directory searches.

Requested Solution:

Implement predictive (T9-style) single-keypress directory filtering in the generic SIP application firmware for Mitel IP400 series phones, or allow admins to select a T9 input mode via the provisioning setup / Admin Portal key templates.

Business Impact:

Restoring predictive search will eliminate user frustration, reduce call lookup times, and smoother the overall onboarding transition for former ShoreTel/Mitel MiVoice Connect customers migrating to RingCentral.