# VoIP.ms

[VoIP.ms](https://voip.ms/residential) is a Montreal-based Voice over IP (VoIP) company founded in 2007 that provides a vast range of standard telephony features as well as enhanced communication features to simplify both business and residential communications such as local DID numbers in 60+ countries, it also offers termination (outgoing calls) in over 125 countries across the globe, toll-free numbers, call conferencing and services such as E911, CNAM Lookup, SMS/MMS, virtual fax, virtual PRI and local number portability.

ProSBC connects your IP-PBX to VoIP.ms SIP Trunking. This article describes how to connect ProSBC to VoIP SIP Trunking.

### Prerequisites

* ProSBC devices must be installed as described in their respective installation guides.
* VoIP SIP Trunking Account. Please visit the following link for more details about [VoIP.ms](https://voip.ms/residential)

### Example Environments for SIPTrunking with VoIP.ms

<figure><img src="https://docs.telcobridges.com/w/images/0/01/Voipms_Trunking.png" alt=""><figcaption></figcaption></figure>

### Example Configuration

Step by step example SIP Trunk configuration.

* [VoIP.ms SIP Trunking Configuration](/configuration-details/configuration-by-use-case/sip-trunking-configuration/sip-trunk-configuration-instruction-with-voip.ms-sip-trunking.md)
* ProSBC wiki in [VoIP.ms](https://wiki.voip.ms/article/TelcoBridges_SBC) web site

### Troubleshooting

<table><thead><tr><th width="200">Call Trace</th><th width="200">Test Call</th><th width="200">TBReport</th><th width="200">Advanced Troubleshooting of ProSBC</th></tr></thead><tbody><tr><td><ul><li><a href="/pages/wANvjzXmam8kffkMPw9X">Configure call trace</a></li><li><a href="/pages/0xUPGJa2HODY3Q6dXomj">Retrieve call trace</a></li></ul></td><td><ul><li><a href="/pages/X5qsI1juaiqbPcEAM4kK">Creating a Test Call</a></li></ul></td><td><ul><li><a href="/pages/o5WkY2J8kt6xmZ8P9npo">Capture a report of the system</a></li></ul></td><td><ul><li><a href="/pages/JtFwsTqktzofDpi5TFoE">Advanced Troubleshooting of ProSBC</a></li></ul></td></tr></tbody></table>


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