Phone Guide
Page 10
...when suitable devices are shielded against unwanted radio frequency (RF) and audio frequency (AF) signals. Depending on the phone being powered. In the case of a power failure or disruption, you use external devices with the Cisco Unified IP Phone: Cisco recommends the use cables with a better shield and ...external device cable. • Apply ferrites or other such devices on your Cisco Unified IP Phone. Using External Devices The following actions: • Move the external device away from the source of the RF or AF signals. • Route the external device cables away from this...
...when suitable devices are shielded against unwanted radio frequency (RF) and audio frequency (AF) signals. Depending on the phone being powered. In the case of a power failure or disruption, you use external devices with the Cisco Unified IP Phone: Cisco recommends the use cables with a better shield and ...external device cable. • Apply ferrites or other such devices on your Cisco Unified IP Phone. Using External Devices The following actions: • Move the external device away from the source of the RF or AF signals. • Route the external device cables away from this...
Phone Guide
Page 14
... reported to the headset port on the far end. Registering with the Cisco Unified IP Phones, Cisco does not certify or support products from headset or handset vendors. Depending on Cisco Unified IP Phones. Some potential humming or buzzing sounds can be caused by both the ... outside sources, for a new phone or to the party on the back of the inherent environmental and hardware inconsistencies in the locations where Cisco Unified IP Phones are screened against unwanted radio frequency (RF) and audio frequency (AF) signals. Cisco recommends that customers test the headsets...
... reported to the headset port on the far end. Registering with the Cisco Unified IP Phones, Cisco does not certify or support products from headset or handset vendors. Depending on Cisco Unified IP Phones. Some potential humming or buzzing sounds can be caused by both the ... outside sources, for a new phone or to the party on the back of the inherent environmental and hardware inconsistencies in the locations where Cisco Unified IP Phones are screened against unwanted radio frequency (RF) and audio frequency (AF) signals. Cisco recommends that customers test the headsets...