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Joined: Jan 2011
Posts: 8
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Customer has KX-t7220 phones.. we got them 3 new KX-T7720 phones when I plug phone into the jack that is working with the 7220, I get some lights on the lines but the phone buttons do not work and no dial tone.. the 7220 works fine. is there something missing from programming or wiring?
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Joined: Jan 2005
Posts: 15,409 Likes: 18
Moderator-Vertical, Vodavi, 1A2, Outside Wire
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Moderator-Vertical, Vodavi, 1A2, Outside Wire
Joined: Jan 2005
Posts: 15,409 Likes: 18 |
The 72XX series phones only require the second pair to operate, while the 77XX ones require both pairs. My guess is that the first pair isn't connected at the jacks or isn't cross-connected at the KSU.
Ed Vaughn, MBSWWYPBX
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Joined: Jan 2011
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thanks ed thats what we were thinking.. so no preogramming right? do u know if the 7720 is a digital set or analog?
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Joined: Jan 2005
Posts: 15,409 Likes: 18
Moderator-Vertical, Vodavi, 1A2, Outside Wire
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Moderator-Vertical, Vodavi, 1A2, Outside Wire
Joined: Jan 2005
Posts: 15,409 Likes: 18 |
No significant programming is necessary. The 7720 is an analog set.
Ed Vaughn, MBSWWYPBX
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Joined: Jan 2011
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Great, u r awesome thanks for your fast responses, im off to the customer now 
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Joined: Aug 2009
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Originally posted by EV607797:
The 72XX series phones only require the second pair to operate, while the 77XX ones require both pairs. My guess is that the first pair isn't connected at the jacks or isn't cross-connected at the KSU.
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