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FlySIP 5.5

FlySIP 5.5 is available from February 14, 2023. Upgrades of production systems are scheduled with FlySIP support for partners with a valid support agreement who run the latest version of the previous release. To buy a support package, contact sales@flysip.com.

Major Changes

Section titled “Major Changes”

Account Trunk Enhancements

Section titled “Account Trunk Enhancements”

In prior versions, we only had support for a main trunk connection and a backup trunk connection. We have made some major changes to how we manage trunk connections, and it is now possible to support multiple trunk connections instead of just having main and backup connections.

New Web Framework

Section titled “New Web Framework”

To support some of the work needed for multiple trunks, we have also adopted a new web framework that will improve usability for this feature and serve as a foundation for improving the overall web user experience. We plan to extend this framework to additional pages in upcoming releases.

Improved Video Calling Support

Section titled “Improved Video Calling Support”

With the updated RTP Proxy included in our release, it also comes with improved video calling support. This is a useful feature to explore opportunities for video calls through your softswitch. A practical application could be SIP-based security cameras that call the home/business owner and send video as they detect motion.

Cloud Backups

Section titled “Cloud Backups”

During our development cycle for FlySIP V5.5, we created a new solution that allows users to create a safe, secure, and offsite backup solution. Your regularly scheduled backups will be automatically uploaded to an Amazon S3 bucket, protecting against hardware problems in your local data center. This solution is cheaper than a full standby system but effective enough to quickly rebuild your softswitch with critical business data.

GoLang Version of RTP Cluster

Section titled “GoLang Version of RTP Cluster”

In support of our efforts to develop a clustered version of our software, we have rewritten RTP Cluster into GoLang. The RTP cluster monitors and manages load across different RTP Proxy instances set up on various nodes.

SRTP Support

Section titled “SRTP Support”

In FlySIP 2021, we added SIP TCP/TLS, laying the groundwork to extend SRTP functionality to the softswitch. This feature is one of the final improvements needed to prepare for Microsoft Teams integration.

Firewall Improvements

Section titled “Firewall Improvements”

A number of improvements have been made to the firewall system to better manage SIP TLS/TCP connections. This includes enhanced handling of incoming SIP TLS/TCP connections and improved support for TFTP and notifications. You can now also bypass specific firewall rules for UDP traffic, speeding up RTP data processing.

DID Ranges Management

Section titled “DID Ranges Management”

We have added initial support for DID ranges to the softswitch, enabling operators to manage large ranges of DID numbers. Since DID Ranges can contain tens or hundreds of thousands of numbers, support for blocks of numbers provides a more efficient way to manage them.

New Features and Improvements

Section titled “New Features and Improvements”
  • SS-5226 - Updated ports tree.
  • SS-5195 - Update to FreeBSD 13.1.
  • SS-5278 - PostgreSQL update to 14.
  • SS-5322 - Update OpenSIPS 3.1 to the latest LTS version 3.1.13.
  • SS-5551 - Switch web to use HTTP/2 (HTTP2).
  • SS-5306 - Add a default value for netmask in IP Firewall tool.
  • SS-5280 - Actualize list of NTP servers.
  • SS-5241 - Updated RTP Proxy.
  • SS-5251 - Improved Video Calling support.
  • SS-5205 - Refactor OpenSIPS config for better structure and clarity.
  • SS-5184 - Add per-environment XMLAPI control for hiding password settings.
  • SS-4998 - Add new firewall_type for TFTP to manage access to service via web firewall tool.
  • SS-5120 - Change subject in Send by Email for DID and Vendor CDRs.
  • SS-3214 - Call direction information can be retrieved from the B2BUA.
  • SS-5437 - Media Port Change.
  • SS-5332 - Create a notification for web pages for legacy browsers.
  • SS-5315 - Maximum call-id field length for related CDR tables.
  • SS-4935 - Add a DB setting for Thrift.
  • SS-4812 - Configurable Default Values for Follow Me Timeouts.
  • SS-1000 - Compress Data export files.
  • SS-5146 - Update from Python 3.6 to Python 3.9.
  • SS-5146 - Update PHP to 8.1.

API Changes

Section titled “API Changes”
  • SS-5046 - Privacy support in Test Dial Plan.
  • SS-5314 - getDIDInfo() and getDIDList() XMLAPI does not return incoming_cli.

Security Improvements

Section titled “Security Improvements”
  • SS-5463 - Remove IPs of former Kyiv office from firewall and hosts.allow.

Stability Improvements

Section titled “Stability Improvements”
  • SS-5305 - Backup with TAR format writes to root partition and fails.
  • SS-4387 - Validation for ports in network services.
  • SS-1279 - Looking Glass Error.
  • SS-5397 - IVR Prompt upload issue.
  • SS-5388 - DID cache reload.
  • SS-5377 - Bye from Vendor is not forwarded to Caller in TLS Scenario.
  • SS-5358 - Fix warning for intermediate SSL Certificate of Starfield Technologies Inc.
  • SS-5349 - ssp_maild problems caused by switch from TLS to SSL.
  • SS-5316 - Invoice Generation takes too long.
  • SS-5300 - Issue on environments when using an external script for exchange rates.
  • SS-5096 - Double quotes are not properly escaped on Accounts page.

Pre-Upgrade Checks

Section titled “Pre-Upgrade Checks”

Before you upgrade your system, we will ensure your switch meets the following pre-upgrade requirements:

  • OpenSIPS Version 3.1.
  • PostgreSQL Version 10.
  • FreeBSD Version 12.2.

Deprecated functionality

Section titled “Deprecated functionality”

Internet Explorer and some older browsers will no longer be supported. HTTP/1.1 has now been deprecated and replaced by HTTP/2.

For questions or support, contact sales@flysip.com.