PAUL HARTMANN KAREL IPV-50’yi TERCİH ETTİ
UZUN YILLAR KAREL ANALOG SANTRAL KULLANMIŞ OLAN PAUL HARTMANN, HABERLEŞME SİSTEMİNİ KAREL IP SANTRAL İLE GÜNCELLEDİ.
- KAREL IPV50 TELEFON SANTRALİ
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