![]() ![]() ![]() ![]() |
|
|
Company |
Staff 1990 |
Staff 1996 |
Staff 2003 |
|
Telstra |
86,728 |
76,522 |
37,169 |
|
OTC |
3,000 (est) |
n/a |
n/a |
|
Optus |
n/a |
4,500 (est) |
8,609 |
|
Vodafone |
n/a |
1,000 (est) |
1,742 |
|
TCNZ/AAPT |
n/a |
400 (est) |
1,650 |
|
Hutchison |
n/a |
n/a |
1500 (est) |
|
Other carriers |
n/a |
n/a |
3,000 (est) |
|
TOTAL |
89,782 |
82,422 |
53,670 |
3.15 The CEPU noted that the fall in staff numbers has been accompanied by growth in contractor employment but estimated that the current number of staff still falls below the 1990 and 1996 figures. While improved efficiency in the industry could be expected to lead to a fall in the number of staff employed, it might have been expected that the growth of the industry over the same period would have largely counterbalanced that effect. The evidence presented by the CEPU suggests that staff numbers have been reduced to the point where there may be insufficient staff to properly maintain the network.
3.16 Another area of concern raised by the CEPU related to possible deterioration of cables in the Telstra network as a result of an unsuccessful program to seal these cables from moisture damage. The CEPU outlined this issue in its submission:
In the mid-1990s Telstra embarked on a programme to seal the Customer Access Network i.e. to surround joints with a (supposedly) protective gel
a) to help prevent moisture entering the network at these points
b) to prevent both the need for and adverse consequences of constant intervention in the network at these same points.
The initiative was intended to reduce the fault rate and hence allow ongoing labour shedding without jeopardising network reliability. The effect has been the opposite.
It has now become apparent that the gel used by Telstra reacts with moisture to break down cable insulation. Moisture is always likely to be present in underground cable to some degree, as over time even modern sheathing is permeable. Moreover the older the cable, the more likelihood there is of leaks occurring along it (i.e. at places other than the joints). This will result in increased fault levels not only at the joints but at other points of the network as the gel seeps along the cables and encounters moisture further along the cable run. The problem is being exacerbated by the air pressure maintenance difficulties discussed below.
Use of the product has been discontinued, but large amounts of cable are now being exposed to corrosion as a result of the programme. Diagnosis of the resulting faults is complicated by the facts that
(a) they are not necessarily at the joints and
(b) as the fault arises from a chemical reaction rather than a mechanical fault/failure, its location may not be easily identifiable.
The union believes that problems arising from the Seal the CAN project are widespread. However they are particularly likely to affect country areas as these were targeted by the programme to address higher rural fault rates. [239]
3.17 During the Committees public hearings, witnesses elaborated on the effects of this situation on the reliability of the CAN. The Committee heard evidence that faults ascribed by Telstra to storm damage can often be traced to this problem:
One of the things that the management of Telstra are pushing quite strongly is that the problems were caused purely by lightning. It is the view of my members, and the union, that the major cause of the problems was not the lightning but the state of the network in particular, the problems that have been caused by the so-called Seal the CAN process that Telstra went through some years ago. The minute that there is a bit of rain or bad weather the faults come in thick and fast. The management of Telstra will indicate that they have never seen storms like it or so many faults come in and that it was because the storm was so severe. It is my belief and the belief of my members who were out there fixing these faults that, although the storm was a fairly significant one, the root cause behind the numbers of faults that they got which were record levels, and there are no records in the past that go anywhere near them was the lack of upkeep of the network and the problems caused by the flawed Seal the CAN episode.[240]
It is not always easy to find the fault in these circumstances. In fact, it is quite a worry in Northern Australia where you have, obviously, wet and dry seasons. The fear is that in the wet the potential for a large number of faults to occur is extremely high. We are particularly lucky, in my view, that we are currently undergoing a drought. It is hard to estimate what the long-term effect of the gel might be. I think that is a suck it and see, to be quite frank. I know Telstra has put a bright light on it and suggested that all is well, but our members have a great deal of fear about the long-term impacts of seal the CAN. Certainly, it is unfortunate that the whole process was not further researched before it was rolled out and people were forced to seal every joint they opened. There are even suggestions from some circles that some of the contractors that sealed the CAN actually watered down the gel.[241]
3.18 Telstra responded to these concerns during questioning by the Committee. It outlined the steps it had taken to remedy problems arising from the seal the CAN program:
With regards to seal the CAN, prior to May 2003, during the 2002-03 financial year there was a centrally managed project, managing and monitoring a portion of the total gel remediation work, which we have talked about at length at other hearings. This project reported approximately $4.6 million of expenditure on gel remediation. That in itself does not tell the whole picture, because that is the centrally managed and maintained project. As part of the work of technical servicemen and women on a daily basis, they will be remediating joints and cable joints where they see fit, to provide the quality of service that is required. That is not necessarily part of this program but it goes on continually. Under the rehabilitation program, gel joints are fixed as part of the network plant project and we are targeting fixing poorly performing plant, the focus being providing maximum customer benefit for that investment.[242]
We also have stopped the process of sealing joints with the use of gel, and there is no plan to replace the gel joints across the country. As the problems are identified reactively and proactively, so we selectively replace these joints when they come up and we believe that they will become customer affecting.[243]
3.19 Telstra also indicated that it is continually looking to improve work practices and technologies in relation to the sealing of joints in cables. [244] In response to one claim made by a CEPU witness, Telstra said that it had no evidence that some contractors had watered down the gel.
3.20 The number of cables in the Telstra network which had been sealed with gel is not clear although one witness suggested that 100,000 joints are affected. The number of these joints which represent a problem in the Telstra network was the subject of some disagreement between the witnesses. The Committee notes that in the Estens report Telstra was reported as having advised that in almost all joints where it had been used, the gel continued to be an effective sealant.[245] When questioned about this issue during estimates hearings, and by this Committee during its hearings, Telstra maintained that:
We understand - this will not be exact - that in about 97 per cent of cases that is true. But clearly there are some areas, particularly where there are high levels of humidity, where there are some concerns about it. [246]
The vast majority of cases where the gel joints are in place continue to work well. Telstra still estimates that this problem contributes to approximately three per cent of all faults in the network, and that is based on the fault codes that we receive. [247]
3.21 Evidence from the CEPU suggested that the problems are much more widespread:
I am sure that Telstra are being optimistic. One would expect them to apply a bit of optimism to the problem. The problem is that this is not a short-term thing. This will go on in their network, potentially, while any of those gel-filled joints exist. It is not a simple case of identifying these joints to repair and fix; they essentially tried to seal 100 per cent of their CAN. It is almost impossible to quantify. It will take time to get a better assessment of what the long-term impacts are likely to be, in my view. In fact, they are lucky at this point in time that it has been a very dry season. It is hard to base your assessment on this year, to be quite frank. The real worry is that the fault in these types of joints is not obvious. You can go to a joint and not see a problem, because you do not actually see the physical corrosion straightaway. You will find the problems more through customer reports than through any other mechanism. It is very hard to quantify what the long-term impacts might be, as I said.[248]
The union believes there are over 100,000 joints in this country that have sealant gel in them. Most of these, once they have water in them, are breaking down and affecting the customer, and massive amounts of work are there to be done.[249]
3.22 Another method which is used to protect copper telecommunications cabling from the effects of moisture is the use of air under pressure. Concerns have also been raised about the maintenance of these cables. The CEPU outlined its concerns on this issue in its submission:
The CEPU estimates that some 70-80% of main cables are air-filled.
The air for the cables comes from a compressor in the exchange and/or compressed air bottles which can be deployed locally (e.g. in a manhole) in the event of a leak. (Use of bottles should be a short-term remedial action only.) A system of alarms is designed to alert staff to any fall in cable air pressure.
The maintenance of cable air pressure is central to the protection of cables that are not jelly-filled. It also serves a diagnostic purpose, as a fall in air pressure may indicate a leak at a joint or a hole/break in the cable.
The maintenance of air pressure was until recently a specialised function within Telstra (Telecom/PMG). However, the section responsible for responding to air pressure alarms (the Cable Pressure Alarms Systems [CPAS] group) was disbanded in 2000-2001 and the function contracted to Network Design and Construction (NDC), Telstras stand-alone construction wing. Little encouragement was given to the skill base to transfer to NDC a fact which, in the CEPUs view, reflected an underestimation of the importance of the cable protection function. NDC has itself been downsized since that time.
The CEPU believes that cable pressure maintenance is now seriously under-resourced and poorly co-ordinated with other diagnostic and maintenance functions. For instance, since December 2001, after hours and weekend compressor maintenance has been abandoned. Alarms that occur during these periods are simply not attended to until normal working hours have begun, so that a faulty cable could be losing pressure for two days without the problem being addressed.
Moreover, it is increasingly the case that staff allocated to attend to air pressure problems will be required to provide a quick fix (in the form of a gas bottle), without the underlying cable fault being addressed. Even if staff had the time and authority to deal with the cable repair job, they may lack the specialist knowledge to do so (e.g. jointing skills).
The impacts of these air pressure maintenance problems are widespread. The Union believes, for instance, that one in five main cables in Sydney are without proper air pressure.[250]
3.23 Union representatives expanded on the nature and extent of this problem during the Committees hearings:
I am aware that there is quite a lot of usage of dry air bottles along cables to try and maintain the pressure along the cable lengths. That is an indication that not enough has been spent to make sure that the main cables are adequately sealed. It is a short-term measure to overcome the sealing of the main cables.[251]
I have here a document which is obviously from the Network Design and Construction Business Unit, which is a company within Telstra, which has now gone in-house. This report clearly identifies how many bottles right throughout New South Wales are being used on main cables, where they are not sending staff out. If a problem such as a leak in their main network were identified, the normal process would be to send out a staff member to put a bottle on it to keep the air pressure up and keep the water out.
What occurred in the past, and when I say the past I mean probably pre- 1997, is Telstra had a program to find and fix leaks. They therefore removed the bottles, and the compressor at the exchange took over. What is occurring now, and again this is through lack of money for capital expenditure and investment, is bottles and bottles and bottles sitting across all parts of the network, propping it up, and Telstra are not going back and fixing the network. In our view, once it does rain, Telstra customers throughout rural and regional Australia will experience a massive amount of outages where they will not have phone services. I will give you an example. I cannot quote exactly how many main cables are in Dubbo, but in my report here there are 15 cables that are not up to the prescribed Telstra standard in Dubbo alone.
No program is in place to rectify the problem. The CEPUs major concern is that, if that is the state the main cables are in now with no money being spent on fixing problems with them since 1997, what will happen to them once Telstra is fully privatised?[252]
3.24 The evidence received by the Committee also directly linked the failure to maintain air pressure in cables with the declaration of MSDs:
We have got some print-outs here of the Albion Park cables, for example, regarding the mass service disruption. When those 400 customers lost service in February, it was because the main cable went down. It did not have enough air pressure in it and the water got in, and that is the reason it went down. Since Ms George has been raising the issue at Albion Park, NDC have had four people working to try and repair the holes in the Albion Park cables. Telstra have said to the contracting company, NDC, that they wish to have at least 40 kilopascals of air in each main cable. The print-outs that we have got in front of us indicate there are still not many cables in Albion Park that have over 40 pound of air pressure in them as we speak. Cable 3 in Albion Park has got 12 kilopascals of pressure in it. If you look through the data we only received it yesterday it shows that the standard right across Australia, where there are 18,000 of these cables under pressure, means that there could be up to one in five that are flat and have not got enough pressure in them.[253]
3.25 This anecdotally based evidence about problems in the Telstra network should be viewed in the context of Telstra's overall performance. The ACA reports regularly upon the performance of Telstra under the Network Reliability Framework. In its June 2003 report on carrier performance the ACA reported that:
Telstras performance shows that on average 99.06 per cent per cent of all Telstras telephone services did not experience a fault from January to August 2003. Performance was slightly better in capital city areas (99.20 per cent) compared with non-city areas (98.99 per cent).[254]
3.26 At first glance these figures appear to be reasonably acceptable. They appear to suggest that over the eight month period canvassed, less than one per cent of all telephone services experienced a fault. However, a closer examination of the report shows that this is an average of the monthly fault rates. To determine the percentage of faults over a twelve month period would require aggregating the total number of faults over that period from the monthly statistics.
3.27 During questioning by the ECITA Legislation Committee, the ACA agreed that this was the correct way of interpreting the figures and suggested that:
If these were different services that had a fault each month then you could add them up and, at the end of the year, you would have roughly 12 times the number of faults of any one month. That is fine. There is nothing wrong with that deduction.[255]
3.28 In a subsequent submission to that Committee, the ACA clarified this issue further:
Figures published in a table in the most recent Bulletin (on page 29) included the national average for services without a fault for May (98.97 per cent), June (99.18 per cent) and July (99.12 per cent). This gave a year-to-date monthly average of 99.06 percent. The heading of the column where this figure appears in 2003 average, which has been interpreted by some readers as a yearly average rather than a year-to-date monthly average. This heading will be changed in future Bulletins to avoid the possibility of confusion.
While the recently published fault performance figure of 99.06 per cent is a year-to-date monthly average, it obviously implies a lower annual performance figure. However, it will not be possible for an actual figure to be reported until the figures for the full 12 months are available.[256]
3.29 Under level 2 of the Network Reliability Framework the ACA also monitors performance in Telstra exchange service areas (ESAs). Telstra is required to report to the ACA every month on ESAs where the number of faults has exceeded a threshold level. The ACA has reported that on average less than 3.5% of Telstra's ESAs have reached the threshold for reporting to the ACA in each period. To date the ACA has received 1571 reports on 902 different ESAs and has conducted further investigation and analysis on 77 ESAs based on these reports.[257] The ACA has said that:
The ACA's analysis has shown that generally, Telstra has implemented appropriate processes and actions in order to identify the causes of service difficulties and minimise recurrence.[258]
3.30 In its Performance Monitoring Bulletin for the December quarter of 2003 the ACA reported that an average of around 99.1 percent or services had not experienced a fault in each month over the last year.[259] In its September Bulletin the ACA noted that an annual figure cannot be derived from this data because some services may have experienced a fault in more than one calendar month.[260] However, in the December Bulletin the ACA provided an estimate that 89.73 per cent of services did not experience a fault in 2003.[261]
3.31 The Performance Monitoring Bulletin also showed considerable variations between different areas. The ACA estimated that annual fault free performance ranges from a low 78.9 per cent in the Northern Territory Top End area up to 97.5 per cent in the Brisbane City and Technology area.[262] Although the ACA did not publish annual estimates for each region, the monthly figures show that most of the best performing areas are urban while the worst performing areas are in regional New South Wales, Western Australia and Queensland.[263]
3.32 Another picture of the state of the Telstra network is presented in internal Telstra documents which were tabled in the House of Representatives on 10 March 2003. This document showed that annual fault rates in the customer access network began rising sharply during the first half of 2002 and had reached a ten year peak of approximately 12.8% by December 2003. The document went on to say that:
3.33 In summarising the fault related performance of the CAN Telstra's internal documents said, in part, that:
3.34 The Committee also noted that the ACAs Performance Monitoring Bulletins have shown a consistent increase in the percentage of faults not repaired by Telstra within the CSG timeframes:
Percentage of faults not repaired by Telstra within CSG timeframes[266]
|
Category |
June 01 |
Dec 01 |
June 02 |
Dec 02 |
June 03 |
|
Urban areas |
8 |
11 |
14 |
11 |
18 |
|
Rural areas |
5 |
6 |
7 |
6 |
8 |
|
Remote areas |
13 |
6 |
3 |
6 |
6 |
|
National |
7 |
9 |
12 |
9 |
14 |
(Source: ACA Telecommunications Performance Monitoring Bulletin)
3.35 The ACA's figures for the June quarter of 2003[267] showed that Telstra failed to rectify 14 per cent of faults within the timeframe set out in the Customer Service Guarantee; and failed to make nine per cent of new connections within the CSG timeframe. In response to questions from the Committee the ACA agreed that these levels were of concern:
We indicated in the last two reports that we were concerned about the level of performance in relation to urban faults, which you also in part referred to. We have addressed those issues with Telstra and sought assurances from them that they will take the necessary steps to raise the level of performance.[268]
3.36 The more recent ACA bulletins showed an improvement in the results for the September quarter followed by a decline in the December quarter when 91 per cent of connection requests were completed within the CSG timeframe and 91 per cent of faults rectified within the CSG timeframe.[269] While the Committee is pleased to note that there has been some improvement in Telstra's fault rectification performance, it continues to be concerned about both the high levels of failure to meet the CSG timeframes and the direction of the ongoing trend. The September ACA bulletin showed a declining trend for annual performance for new service connections in major rural areas, minor rural areas and remote areas, and for fault clearance.[270]
3.37 The ACA also monitors the performance of Telstra in meeting its service standard targets for payphones under its USO standard marketing plan. The targets state that payphones in urban areas should be repaired by the end of one full working day after Telstra is notified of the fault; by the end of two full working days in rural areas; and by the end of three full working days in remote areas. In the September 2003 quarter Telstra repaired 86 per cent of faults in urban areas, 82 per cent in rural areas, and only 59 percent of payphones in remote areas within the specified timeframes.[271] The figures reported in the following quarter's ACA bulletin appear to show a significant improvement to 90.5 per cent of faults in urban areas, 86.9 per cent of faults in rural areas and 72.9 per cent of faults in remote areas.[272] However, it is unclear whether there has been any actual improvement because:
Telstra has advised the ACA that its reporting measures for payphone fault repairs have changed for the December 2003 quarter as a result of monitoring system upgrades, making it difficult to draw comparisons against previous quarters. The ACA will require Telstra to use a consistent measurement method for future quarterly reports.[273]
3.38 In March 2004 the ACA published a review of payphone policy. In its report, the ACA expressed concern about the reliability of Telstra's payphones:
the overall reliability of Telstras payphones and its fault repair performance is poor in remote Australia, especially but not only in remote Indigenous communities. There are steps that Telstra can and should undertake to improve the reliability of its payphones. The ACA will undertake closer monitoring of USO performance by Telstra in these target areas.[274]
3.39 The Telstra fixed line network remains the main backbone of the Australian telecommunications network. Any unreliability or deterioration in the network has the potential to seriously impact both the affected individuals and the overall economy. In light of this the Committee is concerned about the current level of faults and the frequent failure of Telstra to meet the timeframes set out in the CSG.
3.40 Telstra's own internal documents support the claims that fault rates are rising as a result of general network deterioration, a focus on providing quick fixes, and inadequate CAPEX expenditure.
3.41 The evidence the Committee has received about the standard of maintenance of the network is of considerable concern. If Telstras fixed line network is allowed to deteriorate as a result of stop gap repairs and inadequate maintenance the subsequent problems may not become immediately apparent, but are likely to show up in the future:
You can save money in the short term. As we all know, it is like a motor vehicle. You can go on driving it and it will cause you no problem, but finally lack of maintenance will catch up with it. Unfortunately, over the last few years, maintaining returns to shareholders, et cetera, has been at the cost of the maintenance and infrastructure bill.[275]
3.42 The Committee is concerned that, should Telstra be fully privatised, its board and management will be exposed to increased pressure to bolster its short term profitability to the detriment of the long term reliability of the network. The current measures in place to monitor the reliability of the network only measure current fault rates. They do not examine the state of the infrastructure and are unable to identify and rectify the long term problems which have been brought to the Committees attention.