Asterisk vs Avaya: Which VoIP Software Is Better in 2026?
Compare pricing, features, integrations, verified reviews, AI capabilities, security, and customer satisfaction — side by side, with no marketing spin.
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The Short Answer
Asterisk vs Avaya, in 15 seconds
Choose Asterisk if…
- You want the lower entry price
- You need a genuinely free plan
- You need the broader feature set
Choose Avaya if…
- You depend on a broad integration ecosystem
Head-to-Head Scorecard
How Asterisk and Avaya score
Asterisk leads on 3 of 9 measured dimensions.
- Even
Customer Rating
Average score from verified user reviews
AsteriskNo reviewsAvayaNo reviews - Even
Review Volume
Number of verified reviews — a proxy for adoption
Asterisk0Avaya0 - Asterisk
Entry Pricing
Lowest published starting price (free plan = lowest)
AsteriskFreeAvayaCustom - Asterisk
Free Access
Availability of a free plan and/or free trial
AsteriskFree planAvayaPaid only - Avaya
Integrations
Number of listed third-party integrations
Asterisk0Avaya2 - Asterisk
Features
Number of listed product capabilities
Asterisk12Avaya7 - Even
AI Features
Capabilities mentioning AI, automation or ML
Asterisk1Avaya1 - Even
Security & Compliance
Number of listed compliance certifications
Asterisk—Avaya— - Avaya
Platforms & Deployment
Supported platforms and deployment options
Asterisk—Avaya3
Feature Comparison
Asterisk vs Avaya feature breakdown
Search or filter the full feature matrix — core features, AI, integrations, APIs, security and compliance.
Asterisk
AvayaPricing Comparison
Asterisk vs Avaya pricing
Entry pricing, plan tiers and the cost factors that shape total cost of ownership.
Asterisk
Free to start- Open-source PBX/telephony toolkit
- VoIP, PSTN & SIP
- IVR & call routing
- Voicemail & conferencing
Avaya
Custom to start- CCaaS & UCaaS
- AI agent assist & orchestration
- Omnichannel engagement
- Cloud, on-prem, or hybrid deployment
Total cost of ownership factors
Beyond list price, factor in implementation, training, add-ons and per-seat scaling when estimating total cost of ownership.
Pros & Cons
Asterisk vs Avaya: strengths and trade-offs
Asterisk
Pros
- Free plan available
Cons
- Fewer native integrations than the alternative
- No compliance certifications listed
Avaya
Pros
- Broad integration ecosystem (2)
- Public API available
Cons
- No free plan
- No free trial
- Pricing is quote-based (less transparent)
- No compliance certifications listed
Buyer Fit
Who should use Asterisk vs Avaya?
Startups
Asterisk
Asterisk keeps early-stage costs lowest with its entry tier.
Small businesses
Asterisk
Asterisk offers the most accessible pricing for lean teams.
Agencies
Avaya
Avaya connects to more tools for multi-client workflows.
Enterprises
Asterisk
Asterisk leads on compliance and breadth for complex needs.
Ecommerce
Avaya
Avaya integrates with more of the commerce stack.
SaaS companies
Avaya
Avaya is the more developer- and automation-friendly choice.
Integration overlap
Only in Asterisk (0)
Only in Avaya (2)
Ask SIA which solution fits your business
SIA, Saaskart's AI buying assistant, weighs Asterisk and Avaya against your team size, budget, integrations and compliance needs — then recommends the right fit and the questions to ask each vendor.
Get a personalised recommendationAsterisk vs Avaya — Frequently Asked Questions
What is the difference between Asterisk and Avaya?
Asterisk and Avaya are both VoIP Software solutions. Asterisk is rated 0.0/5 by 0 users, while Avaya is rated 0.0/5 by 0 users. The main differences lie in pricing, features, and target audience.
Which is better, Asterisk or Avaya?
Based on user ratings, Asterisk scores higher at 0.0/5. The best choice depends on your team size, budget, and specific requirements.
Which is cheaper, Asterisk or Avaya?
Asterisk is the more affordable option with a free plan available.
Does Asterisk or Avaya have a free plan?
Asterisk offers a free plan. Avaya does not have a free tier but offers paid plans.
Can I switch from Asterisk to Avaya?
Switching between Asterisk and Avaya is possible. Both support data export. Check integration compatibility and plan for data migration to minimise disruption to your team.
Who should use Asterisk vs Avaya?
Asterisk is best suited for teams that prioritise zero-cost tools. Avaya works well for teams needing advanced capabilities.
Our Verdict
The bottom line on Asterisk vs Avaya
Best Overall
Either
It's a tie balances user satisfaction and proven adoption.
Best for Startups
Asterisk
Asterisk has the friendliest entry point for new teams.
Best for Enterprise
Asterisk
Asterisk leads on compliance and feature breadth.
Best Value
Asterisk
Asterisk delivers the lowest cost to get started.
Best AI Features
Either
Comparable AI capabilities on both sides.
Highest Rated
Either
Both earn equal user ratings.