Aasta Range: Comparison

The table compares the features and functionality of each of the Aastra handsets:

Aastra	6751i Handset	6753i Handset	6755i Handset	6757i Handset

No. of lines	1 line	Up to 9 call appearance lines	Up to 9 call appearance lines	Up to 9 call appearance lines
Sound quality	Full duplex speaker phone	Full duplex speaker phone	Full duplex speaker phone	Full duplex speaker phone
PBX Functionality	Supports all standard PBX functions	Supports all standard PBX functions	Supports all standard PBX functions	Supports all standard PBX functions
Display	3 line LCD. No backlight	3 line LCD. No backlight	144 x 75 Graphical LCD. With white LED backlight	144 x 128 Graphical LCD. With white LED backlight
PoE support	Integrated IEEE 802.3af. Optional PoE Injector	Integrated IEEE 802.3af. Optional PoE Injector	Integrated IEEE 802.3af. Optional PoE Injector	Integrated IEEE 802.3af. Optional PoE Injector
Configuration	Easy to configure and use	Easy to configure and use	Easy to configure and use	Easy to configure and use
Interoperability	Fully interoperable with leading IP-Telephony platforms	Fully interoperable with leading IP-Telephony platforms	Fully interoperable with leading IP-Telephony platforms	Fully interoperable with leading IP-Telephony platforms
Ports	Two 10/100 Switched Ethernet Ports	Two 10/100 Switched Ethernet Ports	Two 10/100 Switched Ethernet Ports	Two 10/100 Switched Ethernet Ports
SIP	Yes	Yes	Yes	Yes
USB Port	No	No	No	No
Encryption	Capable of encryption	Capable of encryption	Capable of encryption	Capable of encryption
Local Conferencing	No	3-way conferencing	3-way conferencing	3-way conferencing
Multi-language	Multi-lingual support	Multi-lingual support	Multi-lingual support	Multi-lingual support
No. of keys	27	32	39	39
Programmable keys	None	None	6 softkeys – up to 20 functions	12 softkeys – up to 20 functions
No. of function LEDs	2	12	19	19
Directory	200	200	200	200
Callers Log	200	200	200	200
Redial last numbers	100	100	100	100
Headset Port	Yes	Yes	Yes	Yes
VLAN capable	Yes	Yes	Yes	Yes
QoS capable	Yes	Yes	Yes	Yes
Expansion Module support	No	536M	536M or 560	536M or 560
Browsing	XML Support	XML Support	XML Support	XML Support