Vodafone has vowed to defend its new advertising campaign following High Court complaints by industry rival Telecom.

The warring telcos are at loggerheads over what Telecom believes to be a "misleading" advertising campaign regarding Vodafone's SuperNet branding.

At present, Vodafone's advert describes the company's infrastructure as the "best fixed-lined network."

Requesting either the advert be changed or pulled, Telecom's decision to apply for a High Court injunction has been met with stern resistance from Vodafone.

"With the coming together of Vodafone and TelstraClear we have a fantastic set of assets and we feel it is important to tell New Zealanders," a Vodafone statement read.

"These messages have been in the market for a while now - the only difference is we are using our SuperNet campaign to bring the story together for Kiwis.

"We stand behind the Vodafone SuperNet campaign.

"We are confident in what we are communicating and we will be defending Vodafone SuperNet in court."

Speaking on behalf of Telecom last Friday, spokesman Andrew Pirie said the company believes the advert was “misleading to consumers and is therefore in breach of the Fair Trading Act.”