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HP Poly Rove B4 call drops or audio fails while roaming

Find the first mismatch across serving cell, synchronization, handset assignment, primary registration, codec capacity, signaling and both media directions.

Reviewed 2026-10-24Current HP Poly Rove product, support and guide surfaces, the 8.0.11 administrator guide, 8.0.12 user and parameter documentation, 8.0.13 release notes and software archive were reviewed October 24, 2026. HP lists PVOS-L DECT 8.0.13 build 8.0.13.0002 with a July 2026 release date, but publication is not proof of installed firmware, provider approval, completed update or resolved deployment. Exact regional DECT band and SKU, base topology, handset assignment, service profile, SIP registration, cell and synchronization state, repeater path, radio conditions, network path, negotiated codec, signaling and each media direction remain separate evidence. No base, handset, repeater, battery, charger, switch, PoE source, radio survey, synchronization path, PBX, account, certificate, packet, call, emergency workflow, price, inventory, availability, compatibility, certification result, support entitlement or vendor response was inspected or testedAdvancedDocumentation based · not lab tested

Freeze one failed walk before changing the system

Record timestamp and timezone, handset and line identity, current handset and base builds, starting cell, intended target, movement path, active calls and first symptom. Distinguish radio loss, call drop, an audio gap, one-way audio and a later inbound call that no longer rings.

Preserve system status, synchronization, SIP and media evidence before moving bases, resetting registrations or upgrading firmware.

Measure the serving cell and transition point

Record the actual serving base before movement, signal evidence, intended neighbor or repeater and the exact transition point. Repeat with normal doors, lifts, shelving, machinery, people and interference represented.

Published range and a stationary signal bar do not prove overlap or a successful handover.

Prove multicell membership and synchronization

Preserve primary and secondary roles, ChainID, neighbor relationships, synchronization source and current state for the affected bases. General IP reachability or a base serving idle handsets does not prove a healthy synchronization chain.

Correlate clocks and the exact walk before treating a synchronization change as the cause.

Separate primary registration from handset assignment

The administration guide places voice-service registration on the primary base. Follow the selected SIP identity, Contact and INVITE into the B4 system, then the assigned handset and serving cell.

A registered primary base does not prove correct handset assignment, ringing, handover or media.

Check local call capacity, codec and both media directions

HP compares B4 as up to eight calls per base while also publishing a much larger system total. Record calls on the serving cell, negotiated codec, repeater path, PBX and carrier limits.

For the same dialog, preserve responses, SDP, packets and audible results in each direction. One received RTP stream or intact SIP dialog is not two-way-audio proof.

Correct the first divergence and retest the same walk

Correct only the first demonstrated boundary: coverage, overlap, synchronization, network recovery, firmware consistency, assignment, registration, cell capacity, SIP routing or media. HP lists PVOS-L DECT 8.0.13 build 8.0.13.0002 released July 2026; preserve approval and installed state separately.

Retest the same route in both directions under representative load. No installed Rove system or call was tested for this diagnostic.

Sources & applicability

Primary references for the technical details above. Operational examples and planning checklists are VoIP.info editorial guidance.

Examples require adaptation to your topology. No live PBX or hardware testing is claimed.

Continue your research

Current device research · Current HP Poly Rove product, support and guide surfaces, the 8.0.11 administrator guide, 8.0.12 user and parameter documentation, 8.0.13 release notes and software archive were reviewed October 24, 2026. HP lists PVOS-L DECT 8.0.13 build 8.0.13.0002 with a July 2026 release date, but publication is not proof of installed firmware, provider approval, completed update or resolved deployment. Exact regional DECT band and SKU, base topology, handset assignment, service profile, SIP registration, cell and synchronization state, repeater path, radio conditions, network path, negotiated codec, signaling and each media direction remain separate evidence. No base, handset, repeater, battery, charger, switch, PoE source, radio survey, synchronization path, PBX, account, certificate, packet, call, emergency workflow, price, inventory, availability, compatibility, certification result, support entitlement or vendor response was inspected or tested

HP Poly Rove B4: multicell scale, synchronization, calls and firmware evidence

Separate bases, registrations, per-base calls, system calls, handset assignments, synchronization, network recovery and installed PVOS-L DECT.

Multicell DECT base station
HP maintains current Rove product, support and software surfaces. Exact regional SKU, orderability, radio band, platform approval, installed release and remaining support period require confirmation.

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Current device research · Current HP Poly Rove product, support and guide surfaces, the 8.0.11 administrator guide, 8.0.12 user and parameter documentation, 8.0.13 release notes and software archive were reviewed October 24, 2026. HP lists PVOS-L DECT 8.0.13 build 8.0.13.0002 with a July 2026 release date, but publication is not proof of installed firmware, provider approval, completed update or resolved deployment. Exact regional DECT band and SKU, base topology, handset assignment, service profile, SIP registration, cell and synchronization state, repeater path, radio conditions, network path, negotiated codec, signaling and each media direction remain separate evidence. No base, handset, repeater, battery, charger, switch, PoE source, radio survey, synchronization path, PBX, account, certificate, packet, call, emergency workflow, price, inventory, availability, compatibility, certification result, support entitlement or vendor response was inspected or tested

HP Poly Rove B2: single/dual-cell, handset, call and firmware evidence

Separate one- or two-base topology, handset assignment, narrowband call capacity, repeaters, regional radio, SIP state and installed PVOS-L DECT.

Single/dual-cell DECT base station
HP maintains current Rove product, support and software surfaces. Those records do not establish regional orderability, stock, approved platform, installed release or remaining support period.

Read guide →
Current device research · Current HP Poly Rove product, support and guide surfaces, the 8.0.11 administrator guide, 8.0.12 user and parameter documentation, 8.0.13 release notes and software archive were reviewed October 24, 2026. HP lists PVOS-L DECT 8.0.13 build 8.0.13.0002 with a July 2026 release date, but publication is not proof of installed firmware, provider approval, completed update or resolved deployment. Exact regional DECT band and SKU, base topology, handset assignment, service profile, SIP registration, cell and synchronization state, repeater path, radio conditions, network path, negotiated codec, signaling and each media direction remain separate evidence. No base, handset, repeater, battery, charger, switch, PoE source, radio survey, synchronization path, PBX, account, certificate, packet, call, emergency workflow, price, inventory, availability, compatibility, certification result, support entitlement or vendor response was inspected or tested

HP Poly Rove 30: rugged handset, battery, assignment and firmware evidence

Separate IP65 and drop claims, battery maxima, wired-headset path, regional DECT, base assignment, registration, roaming and installed firmware.

Rugged DECT handset
HP maintains current Rove product, support and software surfaces. Regional orderability, stock, battery condition, approved base and installed firmware were not established.

Read guide →
Current device research · Current HP Poly Rove product, support and guide surfaces, the 8.0.11 administrator guide, 8.0.12 user and parameter documentation, 8.0.13 release notes and software archive were reviewed October 24, 2026. HP lists PVOS-L DECT 8.0.13 build 8.0.13.0002 with a July 2026 release date, but publication is not proof of installed firmware, provider approval, completed update or resolved deployment. Exact regional DECT band and SKU, base topology, handset assignment, service profile, SIP registration, cell and synchronization state, repeater path, radio conditions, network path, negotiated codec, signaling and each media direction remain separate evidence. No base, handset, repeater, battery, charger, switch, PoE source, radio survey, synchronization path, PBX, account, certificate, packet, call, emergency workflow, price, inventory, availability, compatibility, certification result, support entitlement or vendor response was inspected or tested

HP Poly Rove 40: Bluetooth, emergency key, assignment and firmware evidence

Separate Bluetooth pairing, wired headset, emergency-key input, service profiles, ruggedness, battery, base assignment, roaming and installed firmware.

Rugged DECT handset
HP maintains current Rove product, support and software surfaces. Regional orderability, stock, battery condition, approved base and installed firmware were not established.

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Buying guide

Cordless DECT phones

Plan coverage, simultaneous conversations and roaming as separate requirements.

Read guide →
Buying guide · Grandstream DP760 product, deployment and installation records plus HP's current North American Poly Rove B2/R8 listing reviewed October 10, 2026; exact regional SKU, radio approval, base and firmware compatibility, topology, power, price, stock and remaining support require confirmation; no radio survey, handover, range, capacity or call was independently tested

DECT repeaters

Extend a supported DECT system only after separating radio coverage, overlap, handover, repeater call capacity, base limits and the Ethernet-to-PBX path.

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Diagnostic · Grandstream DP760 product, deployment, installation and DP752/DP755 administration records reviewed October 10, 2026; exact menus, LED states and limits are model- and firmware-specific; no base, repeater, handset, radio path, switch, PBX, registration or call was inspected or tested

DECT repeater associates but coverage, handover or calls still fail

Trace one failed call through base compatibility, association, region, signal overlap, repeater topology, local relay capacity and the base-to-PBX path.

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Troubleshooting · RFC 3261 and current Asterisk res_pjsip registrar, authentication, outbound-registration and troubleshooting documentation reviewed October 5, 2026; no endpoint, PBX, registrar, binding, transport, packet path or call was inspected or tested

SIP registration loops after an apparent success

Classify normal refresh, repeated authentication, binding replacement, transport restart and outbound-registration retry before changing timers.

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Guide · Wireshark 4.x / current upstream tool documentation; inspect installed versions

Find RTP streams and interpret loss and jitter

Separate captured packet statistics from what the receiving listener actually experienced.

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Guide

Voice VLANs

Separate phone traffic operationally while keeping routing, security and QoS responsibilities explicit.

Read guide →