Freeswitch - Avaya XT Series Deployment Manual

Third Party SIP Server integration
- Authentication – ID: Administrator Settings – Protocols – SIP – Authentication Name
- Authentication – Password: Administrator Settings – Protocols – SIP – Authentication
Password
• From the Phone Provisioning tab of the 3CX extension:
- Network – SIP Transport: Administrator Settings – Protocols – SIP – Transport Outbound
call
- Network – RTP Mode: Administrator Settings – Calls – Encryption – Enable Encryption
and also Administrator Settings – Calls – Encryption – Unprotected Calls
To convert the 3CX RTP Mode parameter into the XT Series ones:
• Normal: Enable Encryption = NO
• Allow Secure: Enable Encryption = YES, Unprotected Calls = [Inform, Show Status]
• Only Secure: Enable Encryption = YES, Unprotected Calls = [Disconnect]
The XT Series supports two types of Best Effort encryption (also known as Allow Secure in 3CX):
• RFC8643 – Opportunistic Approach for Secure Real Time transport Protocol (aka OSRTP or
IMTC mode)
• RFC5939 – Session Description Protocol (SDP) Capability Negotiation (aka CapNeg)
The 3CX server supports two alternative media descriptors: One for SRTP and one without
encryption. As a result, encryption may not establish if you call from this device to another device
even if encryption is enabled on both extensions.
To avoid this, on the 3CX profile, set RTP Mode to Only Secure and on the XT Series settings, set
Unprotected Calls to Disconnect.
Advanced SIP Features
Advanced features, such as Do Not Disturb, Hold/Resume, Call Forward, Call Pick Up, Call
Transfer, Call Park/Unpark, Automatic Redial/Callback are supported using the 3CX Feature
Codes. The Feature Codes during an active call are sent using DTMF. As a result, you should
disable direct media.
To ensure interoperability with direct-media, use DTMF SIP-INFO method instead of RFC2833/
RFC4733.
Other advanced features are not supported by the XT Series, such as Auto-Provisioning, Call
Waiting, Message Waiting Indicator, Busy Lamp Field Configuration, Feature Key Synchronization
Configuration, Emergency call configuration, User Service configuration, Directory Configuration,
Call Logs Configuration.
Related links
Third Party SIP Server integration

FreeSwitch

XT Series supports IOT with FreeSwitch 1.10.1-release-12 4.
August 2020
on page 297
Deployment Guide for Avaya XT Series
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