Google Voice vs. Kamailio SIP Server
Google Voice vs. Kamailio SIP Server
| Product | Rating | Most Used By | Product Summary | Starting Price |
|---|---|---|---|---|
Google Voice | N/A | Google Voice is a free IP telephony service that provides users with one phone number that can be forwarded to multiple phones or devices. It includes features such as call forwarding, voicemail translation, text messaging, and voice calls. Fees may apply for international calling. | $10 per month | |
Kamailio SIP Server | N/A | The Kamailio SIP Server, formerly known as OpenSER or SER, is an open source VoIP and communications platform. | N/A |
| Google Voice | Kamailio SIP Server | |||||||||||||||
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| Editions & Modules |
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| Offerings |
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| Entry-level Setup Fee | No setup fee | No setup fee | ||||||||||||||
| Additional Details | — | — | ||||||||||||||
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| Google Voice | Kamailio SIP Server |
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| Cloud PBX |
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| Call Management |
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| VoIP system collaboration |
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| Mobile apps |
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| Google Voice | Kamailio SIP Server | |
|---|---|---|
| Small Businesses | CloudTalk Score 7.5 out of 10 | CloudTalk Score 7.5 out of 10 |
| Medium-sized Companies | CloudTalk Score 7.5 out of 10 | CloudTalk Score 7.5 out of 10 |
| Enterprises | Cisco Unified Communications Manager (Call Manager) Score 8.6 out of 10 | Cisco Unified Communications Manager (Call Manager) Score 8.6 out of 10 |
| All Alternatives | View all alternatives | View all alternatives |
| Google Voice | Kamailio SIP Server | |
|---|---|---|
| Likelihood to Recommend | 9.0 (71 ratings) | 9.0 (1 ratings) |
| Likelihood to Renew | 9.3 (7 ratings) | - (0 ratings) |
| Usability | 9.0 (9 ratings) | - (0 ratings) |
| Support Rating | 7.0 (35 ratings) | - (0 ratings) |
| Implementation Rating | 10.0 (2 ratings) | - (0 ratings) |
| Contract Terms and Pricing Model | 7.0 (1 ratings) | - (0 ratings) |
| Professional Services | 7.0 (1 ratings) | - (0 ratings) |
| Google Voice | Kamailio SIP Server | |
|---|---|---|
| Likelihood to Recommend | Google
| ![]() Open Source
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| Pros | Google
| ![]() Open Source
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| Cons | Google
| ![]() Open Source
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| Likelihood to Renew | Google
| ![]() Open Source No answers on this topic |
| Usability | Google
| ![]() Open Source No answers on this topic |
| Support Rating | Google
| ![]() Open Source No answers on this topic |
| Implementation Rating | Google
| ![]() Open Source No answers on this topic |
| Alternatives Considered | Google
| ![]() Open Source
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| Contract Terms and Pricing Model | Google
| ![]() Open Source No answers on this topic |
| Professional Services | Google
| ![]() Open Source No answers on this topic |
| Return on Investment | Google
| ![]() Open Source
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| ScreenShots |





