Kidner has been involved in the development of Airwave the nationwide digital TETRA network for the UK emergency services since its inception in 1994.
Kidner takes over from John Cox who is retiring.

The move is part of a wider strategy to differentiate the Nseries from ordinary mobile phones which includes selling the devices through other channels including specialised camera and music stores.
Nokia vice-president of sales and channel management Mads Winblad commented on the move at the Nseries conference in Berlin.
"We are now standing in the middle of a transition of change for retail" he said. "We cannot sell these devices as mobile phones because they offer so much more."
Winblad said the devices "need to be played and experimented with in store so people can really hear the quality of music and see how clear the photos are."
He called on retailers to create dedicated sections in store specifically for what he termed these "multimedia computers".
He also explained Nokia´s plan for the Nseries to be sold through specialist retail shops such as camera stores.
"From day one we will be selling the Nseries through independent channels. That way we can roll the handsets out quicker without relying on the old pattern of network testing before the mobile stores decide to stock them."
Winblad added. "We are hoping to implement this strategy in the next 12 to 18 months."
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His remit will be to develop new channels to market for the company´s new stereo headsets and help manage the growth of the company´s existing mono headset portfolio.
Toms will report to Jabra UK and Ireland country manager Andrew Doyle and will play a key role in managing the company´s relationships with its current partners including high street retail and network accounts.
He spent the past 11 years in sales and was previously national account manager at O2 where he managed the indirect business channel relationship with 4U Business.

The figures are even lower for Germany and the US at 2.5 per cent and 2.7 per cent respectively. First-time downloaders throughout the month didn´t even reach one per cent of users in any of the three countries.
Among the top reasons for not bothering to download a game in the month was that users found the cost of doing so too expensive 40 per cent of German users 24 per cent of UK users and 21 per cent of US users cited cost as the main block.
"Despite the growing selection of games on operator portals consumers are still not able to find games that appeal to them and are complaining that prices are too high" commented M:Metrics senior analyst Paul Goode.
"Faster networks and devices with larger screens will help improve the discovery process but operators and games publishers must do a much better job of marketing and merchandising mobile gaming content."

"The phone does everything a BlackBerry does but its smaller than my D600" said MicroRiver sales director Tony Blacklock.
Blacklock hopes to recruit a dedicated mobile phone distributor and three to 12 dealers.

"Initially I was sceptical" said Eurocom managing director Gary Kay. "But at the end of last year we felt there was little to lose so we replaced our manual method of customer prospecting."
The company chose the Contact Centre Suite from call handling systems specialist Amcat. It manages inbound and outbound calls through self-service call routing.
"Since then our business has exploded and we have increased our staff from six to 27" he added.
The solution also helps produce productivity statistics. "The information is like gold dust" said Kay. "We can identify the best days and time of day to call."
Kay claimed the company would be able to recover its £100000 investment within six months.

Multiple licences were awarded to encourage competitive services.
Among the 12 winners BT bid £275112 Cable & Wireless bid £51002 Colt Mobile bid £1513218 O2 bid £209888 and Opal Telecom bid £155555.
The total amount of the licence fees paid was £3.8 million. Two bidders Orange and Zynetix were outbid at £50000 each.
Following payment of the full licence fees by the winning bidders the awards are effective immediately. The licences are technology neutral which means that the licencees have the freedom to use the spectrum how they wish within certain technical limits.
The licences are to be used on a low-power basis. Possible uses include private GSM mobile phone networks in office buildings or campuses.

Coleen McLoughlin has reportedly been paid £500000 to star in the campaign. It is the company´s biggest ever advertising campaign in the UK and kicks off in the middle of May when the consumer swell is expected to hit.
The Carphone Warehouse claims exclusivity on the KG800 until the middle of May after which O2 will also offer the phone. The rest of the channel can offer the product from the start of June when 20:20 Logistics and CPW´s distribution arms take stock.
The advertising campaign includes TV print and outdoor advertising. LG Mobile UK director John Barton said: "The TV ad has been shot. It´s very much about the design-led nature of the product and talks to people in their 20s and early 30s; people who go to clubs and dress stylishly and are genuinely interested in how they look as well as what they use. The advertising campaign is sexy like the product."
The outdoor campaign takes in billboard posters and bus shelters and will feature moving interactive graphics of the phone.
LG Mobile´s long-mooted shirt sponsorship deal now looks unlikely. Manchester United Tottenham Hotspur and Fulham have all been linked to the manufacturer but Barton said that a shirt sponsorship deal was out of the question for next season.
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The Dabs management team will be retained in the long term according to a BT spokesman. The team includes Dabs marketing director Jonathan Wall who will continue to manage the company´s partnership with online dealership Dial-a-Phone the firm that supplies pre-pay handsets. Dial-a-phone will continue to support Dabs mobile phone ranges and the BT spokesman said that the new owner has no plans to review this partnership.
"The relationship has been a successful one for Dabs and we expect it to continue" he said.
"BT also has a very strong partnership with Dial-a-phone which is active in consumer distribution of BT Fusion."
The spokesman confirmed that BT would market its MVNO offering through Dabs.
BT announced the acquisition of Dabs at the end of April for an estimated £30 million. Dabs was founded in 1990. It employs more than 200 people and has annual revenues of £180 million.

Avenir Telecom Group international director William Quillet said:
"Tanny has excellent ideas about how to grow and improve our UK business and at group level we intend to give her the budget to help realise these plans."
Avenir confirmed the appointment of Price formerly sales and marketing director as managing director following the departure of Ishai Novick last week.
Novick told Mobile News that he is reviewing his options but expects to remain in the mobile phone industry and quite possibly in distribution.
He said: "I was with Avenir for six years and it was time for a new challenge. I would be very hard for me to leave the industry but whether I find another position in distribution or in the broader industry remains to be seen."
Price is currently budgeting for an IT overhaul at Avenir starting July 1 which will enable it to take on more business and increase connections without the need to take on more staff.
Price has also appointed an operational management board comprising six other managers to democratise the decision-making process.
She said: "I want to ensure that I get the buy-in from my management team so they are aware of the impact of decisions we make and how they affect our customers."
As well as Price the operational board includes head of sales Anthony Serlin head of services Toby Wickendon head of marketing Andy Chilton logistics manager Mark Harris and IT manager Shola Fasina.
It also includes a new head of finance currently working out his notice elsewhere in the industry and therefore not yet named.
"There is huge potential for Avenir to grow and develop" Price added. "Our company stands out in the marketplace as one of the few truly independent financially stable UK distributors.
"My mandate is to make changes to our systems and operational processes to increase the efficiency of our business. I want Avenir to be the first choice distributor for independent dealers in the UK".
Avenir employs over 80 members of staff. It has an average growth in turnover of 30 per cent a year.