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Turk Telekom: Green integrated access

Key words: voice, network migration, broadband, narrowband

Abstract:

Turk Telekom, the largest fixed network operator in Turkey, initiated a large-scale network reconstruction project in 2009 and had gained solid progresses, thanks to Huawei's integrated voice and broadband/narrowband solution.

Short version:

Challenges/opportunities:

  • With its low port density, hardware occupied a large footprint.
  • Legacy switches guzzled power, while O&M was burdensome for different board categories.
  • Broadband services were booming, but legacy hardware lagged behind.

Solutions:

  • Turk Telekom selected and implemented Huawei’s high-density voice solution.

Benefits:

  • Reduced indoor equipment space by over 50%;
  • Cut power consumption costs by half.

Medium version:

Turk Telekom is the largest fixed network operator in Turkey. As of the end of 2010, its legacy PSTN was 21 million subscribers, but its legacy equipment was bulky, had few service ports, and consumed a lot of power; 88% of its switches had been operating for more than 20 years. These issues led to OAM difficulties and hindered long-term service development. The fact that broadband was becoming a key revenue stream certainly did not help the situation.

Turk Telekom initiated a large-scale network reconstruction project in 2009 that was slated to be complete within four years. Huawei proposed an integrated high-density voice and broadband/narrowband solution which could meet Turk Telekom’s requirements for network reconstruction.

High-density with reduced space

Turk Telekom’s legacy PSTN devices mostly had eight ports per board, leading to crowded equipment rooms. Huawei’s high-density voice solution provided 64-port voice access and increased the service port density by two to three fold, cutting the equipment room footprint by over half. In addition, Huawei provided a low-cost integrated outdoor cabinet solution that reduced equipment room investment while facilitating deployment.

Three-in-one mode for diversified access

The Turkish market has a plethora of voice service applications; there are public telephony services for a variety of systems and common voice services for homes; thus a single board needs multi-system compatibility. To accommodate, all ports on Huawei’s 64-channel high-density voice board are compatible with common voice access, polarity-reversal access, and 12/16 KC access, while access mode support is solely software-based. This "three-in-one" design facilitated Turk Telekom’s service deployment and homogenized the spare parts needed, while reducing the maintenance burden.

Green design with enhanced benefits

Turk Telekom’s PSTN equipment consumed a lot of power, leading to even more power consumption by air conditioners. The electricity costs for the entire network totaled roughly USD40 million per year, with air conditioners accounting for half of that.

Huawei's 64-channel POTS board was designed using Huawei-developed green units and chips, reducing power consumption for each port by 0.05W. Through intelligent software processing, idle ports could be automatically cut off, further reducing the power consumed. With Huawei, Turk Telekom expected to save USD59 million in electricity costs within three years.

As of Q1 2012, Huawei has shipped 3.5 million new lines for Turk Telekom, among which 3 million lines were cut over. With stable product performance & professional engineering service, Huawei’s network migration solution is well thought of by the operator. As a strategic partner, Huawei will continue its long-term & in-depth cooperation with Turk Telekom to build a green, high-quality & full-service access network.

SUL
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