# Asterisk vs Cisco Unified Communications Manager (CallManager) Comparison | | Asterisk | Cisco Unified Communications Manager (CallManager) | |---|---|---| | **Star Rating** | 4.6 out of 5 | 4.4 out of 5 | | **Total Reviews** | 59 | 111 | | **Largest Market Segment** | Mid-Market (50.0% of reviews) | Mid-Market (50.0% of reviews) | | **Entry Level Price** | $0.02 per minute | No pricing available | --- ## Top Pros & Cons ### Asterisk Pros: - Customer Service (1 reviews) - Easy Integration (1 reviews) Cons: - Complex Processes (2 reviews) - Customer Service (1 reviews) ### Cisco Unified Communications Manager (CallManager) Pros: - Reliability (3 reviews) - Video Conferencing (3 reviews) Cons: - Complex Processes (2 reviews) - Billing Issues (1 reviews) --- ## Ratings Comparison | Rating | Asterisk | Cisco Unified Communications Manager (CallManager) | |---|---|---| | **Meets Requirements** | 9.0 (45 reviews) | 9.1 (91 reviews) | | **Ease of Use** | 7.8 (47 reviews) | 8.1 (92 reviews) | | **Ease of Setup** | 7.5 (37 reviews) | 6.9 (52 reviews) | | **Ease of Admin** | 7.9 (34 reviews) | 8.0 (54 reviews) | | **Quality of Support** | 8.3 (38 reviews) | 8.6 (87 reviews) | | **Has the product been a good partner in doing business?** | 8.3 (27 reviews) | 8.7 (53 reviews) | | **Product Direction (% positive)** | 7.9 (45 reviews) | 8.4 (90 reviews) | --- ## Pricing ### Asterisk #### Entry-Level Pricing Plan: Metered SIP Trunking Price: $0.02 per minute Description: Works well for businesses that may need more flexibility in their communications week to week. Key Features: - No set-up fees. - Metered inbound and outbound local and long distance. - Allows more dynamic call volume activity. [Browse all 2 editions](https://www.g2.com/products/asterisk/pricing) #### Free Trial Yes ### Cisco Unified Communications Manager (CallManager) #### Entry-Level Pricing No pricing available #### Free Trial No information available --- ## Features Comparison By Category ### VoIP Providers | Product | Score | Reviews | |---|---|---| | **Asterisk** | 8.6/10 | 46 | | **Cisco Unified Communications Manager (CallManager)** | 8.6/10 | 46 | #### Platform Basics - VoIP Providers | Feature | Asterisk | Cisco Unified Communications Manager (CallManager) | |---|---|---| | **PBX systems, VoIP Softphone** | Not enough data | Not enough data | | **Call Management** | Not enough data | Not enough data | | **Network monitoring** | Not enough data | Not enough data | | **Integrations** | Not enough data | Not enough data | | **Virtual PBX** | Not enough data | Not enough data | | **SIP trunking services** | Not enough data | Not enough data | #### Basic Communication | Feature | Asterisk | Cisco Unified Communications Manager (CallManager) | |---|---|---| | **Phone Calls** | 9.5 (39 reviews) ✓ Verified | 9.8 (41 reviews) ✓ Verified | | **Video Calls** | 8.1 (24 reviews) | 8.7 (29 reviews) ✓ Verified | | **Instant Messaging** | 8.4 (23 reviews) ✓ Verified | 8.2 (34 reviews) ✓ Verified | | **Screen Sharing** | 7.9 (21 reviews) | 7.7 (8 reviews) | | **Conference Calls** | 9.2 (34 reviews) ✓ Verified | 9.4 (38 reviews) ✓ Verified | | **Desk-to-Desk Calls** | 9.0 (36 reviews) ✓ Verified | 9.8 (39 reviews) ✓ Verified | #### Agentic AI - VoIP Providers | Feature | Asterisk | Cisco Unified Communications Manager (CallManager) | |---|---|---| | **Autonomous Task Execution** | Not enough data | Not enough data | | **Cross-system Integration** | Not enough data | Not enough data | | **Adaptive Learning** | Not enough data | Not enough data | | **Proactive Assistance** | Not enough data | Not enough data | #### Access | Feature | Asterisk | Cisco Unified Communications Manager (CallManager) | |---|---|---| | **Software Pairing** | 7.9 (25 reviews) | 7.9 (29 reviews) | | **Browser Extension** | 7.9 (23 reviews) ✓ Verified | 7.6 (27 reviews) | | **Individual Download** | 7.9 (24 reviews) | 7.3 (25 reviews) ✓ Verified | #### Advanced Features | Feature | Asterisk | Cisco Unified Communications Manager (CallManager) | |---|---|---| | **Hold Music** | 9.1 (35 reviews) ✓ Verified | 9.1 (33 reviews) ✓ Verified | | **Automated Attendants** | 9.0 (32 reviews) ✓ Verified | 8.6 (35 reviews) ✓ Verified | | **VOiP Number** | 9.0 (33 reviews) ✓ Verified | 9.1 (9 reviews) | ### Audio Conferencing | Product | Score | Reviews | |---|---|---| | **Asterisk** | N/A | N/A | | **Cisco Unified Communications Manager (CallManager)** | N/A | N/A | #### Agentic AI - Audio Conferencing | Feature | Asterisk | Cisco Unified Communications Manager (CallManager) | |---|---|---| | **Proactive Assistance** | Not enough data | Not enough data | | **Decision Making** | Not enough data | Not enough data | ### UCaaS Platforms | Product | Score | Reviews | |---|---|---| | **Asterisk** | N/A | N/A | | **Cisco Unified Communications Manager (CallManager)** | N/A | N/A | #### Agentic AI - UCaaS Platforms | Feature | Asterisk | Cisco Unified Communications Manager (CallManager) | |---|---|---| | **Autonomous Task Execution** | Not enough data | Not enough data | | **Cross-system Integration** | Not enough data | Not enough data | | **Adaptive Learning** | Not enough data | Not enough data | | **Natural Language Interaction** | Not enough data | Not enough data | #### Extensions | Feature | Asterisk | Cisco Unified Communications Manager (CallManager) | |---|---|---| | **Tenancy Flexibility** | Not enough data | Not enough data | | **Native VoIP** | Not enough data | Not enough data | | **CCaaS Option** | Not enough data | Feature Not Available | #### Features | Feature | Asterisk | Cisco Unified Communications Manager (CallManager) | |---|---|---| | **Voicemail to Email** | Not enough data | Not enough data | | **Voicemail to SMS** | Not enough data | Feature Not Available | | **File Sharing** | Not enough data | Not enough data | | **Voice Conferencing** | Not enough data | Not enough data | | **Video Conferencing** | Not enough data | Not enough data | | **Conference Transcripts** | Not enough data | Not enough data | --- ## Categories **Shared Categories (2):** [VoIP Providers](https://www.g2.com/categories/voip-providers), [UCaaS Platforms](https://www.g2.com/categories/ucaas-platforms) **Unique to Cisco Unified Communications Manager (CallManager) (1):** [Audio Conferencing Software](https://www.g2.com/categories/audio-conferencing) --- ## Reviewer Demographics ### By Company Size | Segment | Asterisk | Cisco Unified Communications Manager (CallManager) | |---|---|---| | **Small-Business** | 30.8% | 6.7% | | **Mid-Market** | 50.0% | 50.0% | | **Enterprise** | 19.2% | 43.3% | ### By Industry #### Asterisk - **Telecommunications:** 28.8% - **Information Technology and Services:** 21.2% - **Banking:** 5.8% - **Computer Software:** 5.8% - **Accounting:** 3.8% - **Computer & Network Security:** 3.8% - **Facilities Services:** 3.8% - **Broadcast Media:** 1.9% - **Computer Networking:** 1.9% - **Consumer Goods:** 1.9% - **Other:** 21.2% #### Cisco Unified Communications Manager (CallManager) - **Higher Education:** 15.4% - **Information Technology and Services:** 13.5% - **Computer Software:** 7.7% - **Government Administration:** 4.8% - **Telecommunications:** 4.8% - **Insurance:** 4.8% - **Hospital & Health Care:** 3.8% - **Oil & Energy:** 3.8% - **Banking:** 2.9% - **Machinery:** 2.9% - **Other:** 35.6% --- ## Alternatives ### Alternatives to Asterisk - [3CX](https://www.g2.com/products/3cx/reviews) — 4.4/5 stars (546 reviews) - [RingEX](https://www.g2.com/products/ringex/reviews) — 4.2/5 stars (1355 reviews) - [Zoom Workplace](https://www.g2.com/products/zoom-workplace/reviews) — 4.5/5 stars (56351 reviews) - [Webex Calling](https://www.g2.com/products/webex-calling/reviews) — 4.5/5 stars (631 reviews) - [GoTo Connect](https://www.g2.com/products/goto-connect/reviews) — 4.4/5 stars (1414 reviews) - [Dialpad Connect](https://www.g2.com/products/dialpad-connect/reviews) — 4.4/5 stars (4151 reviews) - [Yeastar S-Series VoIP PBX](https://www.g2.com/products/yeastar-s-series-voip-pbx/reviews) — 4.9/5 stars (14 reviews) - [Linphone](https://www.g2.com/products/linphone/reviews) — 4.4/5 stars (16 reviews) - [Twilio Flex](https://www.g2.com/products/twilio-twilio-flex/reviews) — 4.1/5 stars (36 reviews) - [Aircall](https://www.g2.com/products/aircall/reviews) — 4.4/5 stars (1579 reviews) ### Alternatives to Cisco Unified Communications Manager (CallManager) - [Genesys Cloud CX](https://www.g2.com/products/genesys-cloud-cx/reviews) — 4.4/5 stars (1543 reviews) - [RingEX](https://www.g2.com/products/ringex/reviews) — 4.2/5 stars (1355 reviews) - [3CX](https://www.g2.com/products/3cx/reviews) — 4.4/5 stars (546 reviews) - [Mitel](https://www.g2.com/products/mitel/reviews) — 3.8/5 stars (235 reviews) - [Vonage Business Communications](https://www.g2.com/products/vonage-business-communications/reviews) — 4.3/5 stars (500 reviews) - [GoTo Connect](https://www.g2.com/products/goto-connect/reviews) — 4.4/5 stars (1414 reviews) - [Zoom Workplace](https://www.g2.com/products/zoom-workplace/reviews) — 4.5/5 stars (56351 reviews) - [Twilio](https://www.g2.com/products/twilio/reviews) — 4.1/5 stars (518 reviews) - [Dialpad Connect](https://www.g2.com/products/dialpad-connect/reviews) — 4.4/5 stars (4151 reviews) - [Nextiva](https://www.g2.com/products/nextiva/reviews) — 4.5/5 stars (3546 reviews) --- ## Top Discussions ### Asterisk No discussions available for this product. ### Cisco Unified Communications Manager (CallManager) No discussions available for this product. --- **Source:** [G2.com](https://www.g2.com) | [Comparison Page](https://www.g2.com/compare/asterisk-vs-cisco-unified-communications-manager-callmanager)