Summary
In this chapter, you learned how to implement SIP services in order to implement telephony features found in legacy PBXs. You learned that RFC 5359 is our guide when implementing such services. Then, we explained how to implement simple services such as announcements, call forward, integration with voicemail, and call transfer. New services are being created every year; these services are usually proposed in drafts. A few good examples are RFC 6910 describing Call Completion Services and RFC 6341 for SIP-based Media Recording. After implementing all these features, we now have to understand how to troubleshoot them.
In the next chapter, we will cover troubleshooting tools.
Get Building Telephony Systems with OpenSIPS - Second Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
