SPANless Recording

Benefit from SPANless recording using ZOOM CallREC to simplify network management, improve reliability and reduce capital and operational expenses.

Benefits of SPANless recording

Ease of use and management

  • Establish complex network architectures not depending on SPAN ports
  • Move or reconfigure complete departments with ease
  • Improve control over branch locations

Economical

  • Reduce OPEX with easier administration as no configuration of SPAN ports is necessary
  • Reduced CAPEX – need for fewer elements at the branches

Reliable and secure

  • Free-up resources for network monitoring
  • Increase reliability utilizing system resources better and more manageable
  • Security: Both authenticated and encrypted mode can never be recorded.
  • Geo redundancy available with high bandwidth utilization

Additionally

  • Internal calls recording = RSPAN, VLAN split to meet SPAN capacity
  • Cisco plans support for CUCM 8.x
  • Built-in support of recording notification tones

How does it work?

The Cisco Unified Communications Manager (CUCM) interface provides two recording modes;

  • Automatic recording recording all calls on line appearance. This method is invoked by CUCM.
  • Selective recording allowing users to record ad-hoc or also allows recording server to record based on business rules and events.

After calling-in and routing the call to an agent CUCM automatically sends two call setup messages to the Agent device. The 1st call is the agent stream and the 2nd call is customer stream. The Communications Manager invites the recorder to both calls via SIP Trunk and the recorder accepts both calls and receives RTP streams from Agent device.

Requirements

SPANless recording requires:

  • usage of the silent monitoring and recording interface of CUCM
  • CUCM version 6.0 and higher
  • 3rd generation phones with build-in bridge that provides the media forking capability. For the complete and up to date list please refer to Cisco website.

Unique ZOOM Solution

ZOOM's SPANless solution offers unique and custom features and benefits:

  • ZOOM CallREC supports all advantages of CUCM recording interface:
    • Geo-redundancy
    • Load balancing
    • Centralized architecture
  • ZOOM CallREC on-demand recording method is kept compatible with SPANless and the pre-recording and post-recording features are enabled.
    • Authenticated mode supported
  • ZOOM CallREC® supports combination of both methods on one server ensuring that a customer does not have to replace all phones at once.
    • GW trunk recording as a backup/redundant solution
  • ZOOM CallREC identifies if devices are configured for SPANless and automatically accepts the call using a SPAN port
    • If call forking is not coming (WAN limitation) CallREC will check for available data on SPAN port

From SPAN based Recording...

span-based2

to Unified SPANless Recording.

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SPANless usage notes

Usage of a SPANless configuration will bring major benefits as long as the following requirements and notes are taken into account:

  • The expected increase of network traffic
  • For PSTN recording only GW span works as simple trunk recording
  • TAP switches are able to handle high traffic in large architectures with centralized GW
  • Only 3rd generation phones are supported
  • There is no support for active-active redundancy
  • Interruptions in recording may occur if a failure occurs during the call
  • If the WAN capacity is limited, redundant recording may be refused (due to automated network intelligence)