analog phones? are u suing some ATA, as me?
FYI, i have bad sound quality with sipura 2100, but i have no sound problem with budgetone ATA.
Sipura SPA-2100 was good until 607, after 607 i cannot use them any more :(
With voip phones like BT100, i have NO sound problem, before and after 607.

My topology is:
SIP phones ---> Asterisk [vISDN] <---> [ISDN BRI] Siemens PBX <--- analog phones

vISDN using HFC-S PCI card.

Sometimes for the first call between same pair of phones, the sound is clear, but most times it's horrible.

        McLEI

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