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Head-to-head · IP PBX Software

Avaya IP Office vs Yeastar P-Series Cloud Edition

  • Updated Oct 2026
  • Both researched from official sources
  • 2 checks side by side
Higher score Avaya IP Office #2 in IP PBX Software 9.0/10 Pricing on request ✓ 1 of 3 features Visit Avaya
Yeastar P-Series Cloud Edition #7 in IP PBX Software 8.5/10 30-day trial Free trial✓ 0 of 3 features Visit Yeastar

Avaya IP Office leads on 0 checks, Yeastar P-Series Cloud Edition on 0, and 2 are even. Who comes out ahead on the 2 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreAvaya IP Office · 9.0/10
  • Free trialonly Yeastar P-Series Cloud Edition
  • Most featuresAvaya IP Office · 1 of 3

Avaya IP Office scores higher on our rubric for ip pbx software: 9.0 against 8.5 out of 10; our editors rank them #2 and #7.

Avaya IP Office is the better fit for organizations standardizing on an established on-prem PBX. Yeastar P-Series Cloud Edition is the better fit for teams seeking cloud PBX with AI call handling.

  • Avaya IP Office fits best

    Organizations standardizing on an established on-prem PBX

  • Yeastar P-Series Cloud Edition fits best

    Teams seeking cloud PBX with AI call handling

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Avaya IP Office 9.0/10 Visit ↗ Yeastar P-Series Cloud Edition 8.5/10 Visit ↗
At a glance
Editor score 9.0 8.5
Ranking #2 in IP PBX Software #7 in IP PBX Software
Best for Organizations standardizing on an established on-prem PBX Teams seeking cloud PBX with AI call handling
Pricing model Paid Paid
Starting price Pricing on request 30-day trial
Free plan Not checked yet —
Free trial — 30 days
Deployment Self-hosted, Desktop, Mobile Cloud
Platforms Windows, macOS, iOS, Android Web, Windows, macOS, iOS, Android, Chrome extension
Support Tickets, Docs Email, Phone, Tickets, Community, Docs
Integrations 9 integrations 20 integrations
Built for Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features Avaya IP Office 1/3 · Yeastar P-Series Cloud Edition 0/3
Web management Not checked yet Not checked yet
Call recording ✓ (best) Not checked yet
High availability Not checked yet Not checked yet
Specs
Concurrent call limit Not checked yet Not checked yet
Deployment options Not checked yet Not checked yet
Supported platforms Not checked yet Not checked yet
Our review
Pros
  • Combines TDM and IP telephony with trunk support.
  • Includes auto attendants, call routing, recording, and conferencing.
  • Workplace Client supports desktop and mobile calling, messaging, and presence.
  • Routes calls by time, DID, and caller ID, with multi-level IVR and queues
  • AI receptionist answers and routes calls; voicemail and calls can be transcribed
  • Linkus clients, business integrations, and APIs span common platforms
Cons
  • Purchasing is routed through sales or partners rather than public pricing.
  • Instant messaging requires one-X Portal or Avaya cloud services.
  • Features vary by edition, deployment, license, and territory.
  • Commercial pricing is handled through Yeastar’s Partner Portal
  • Paid instances require a minimum of 5 extensions
  • Enterprise and Ultimate are the listed plans, with no free plan
Our verdict

Avaya IP Office brings on-premises unified communications and telephony together for small, medium-sized, and larger organizations. Its hybrid PBX supports both TDM and IP telephony, while voicemail, call management, conferencing,…

Read the review →

Yeastar P-Series Cloud Edition brings business calling into a cloud-hosted PBX for organizations that need call routing, IVR, queues, voicemail, and connections to business systems. Its multi-level, multilingual, and time-based IVR…

Read the review →
  1. Avaya IP OfficeIP PBX Software 9.0Pricing on request
  2. Yeastar P-Series Cloud EditionIP PBX Software 8.530-day trial

Strengths and trade-offs

  • Avaya IP Office — where it wins

    • Combines TDM and IP telephony with trunk support.
    • Includes auto attendants, call routing, recording, and conferencing.
    • Workplace Client supports desktop and mobile calling, messaging, and presence.

    Where it doesn't

    • Purchasing is routed through sales or partners rather than public pricing.
    • Instant messaging requires one-X Portal or Avaya cloud services.
    • Features vary by edition, deployment, license, and territory.
  • Yeastar P-Series Cloud Edition — where it wins

    • Routes calls by time, DID, and caller ID, with multi-level IVR and queues
    • AI receptionist answers and routes calls; voicemail and calls can be transcribed
    • Linkus clients, business integrations, and APIs span common platforms

    Where it doesn't

    • Commercial pricing is handled through Yeastar’s Partner Portal
    • Paid instances require a minimum of 5 extensions
    • Enterprise and Ultimate are the listed plans, with no free plan
  • Avaya IP Office9.0/10 · Pricing on request

    A hybrid on-prem PBX with broad calling and collaboration features for Avaya-oriented organizations.

    Visit AvayaFull verdict →
  • Yeastar P-Series Cloud Edition8.5/10 · 30-day trial

    A cloud business phone system combining IVR, queues, AI transcription, and integrations.

    Visit YeastarFull verdict →

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update