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ISDN30 or SIP: is service being sacrificed to revenue?

Posted by Paul Storey | 28 Oct 2011, 13:19 PM

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There’s no doubt that the advantages of SIP trunking over ISDN30 are being recognised but anecdotal evidence from our customers suggests that many network providers are reluctant to actively sell SIP over ISDN, wrongly suggesting that it’s not fully proven.

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