We've just installed the following configuration:
Mitel ICP 200 AX
Mitel 5340 x2 IP Phones
Mitel 5324 x2 IP Phones w/LIM Modules
Mitel 5312 x8 IP Phones
HP 1910 Gigabit POE Switch x2 (pretty much a 3com switch re-branded to HP after HP bought them)
ICP connected diretly to POE switch, and all phones directly connected to POE switch
Computers are being passed through the 2nd IP port on the phones (this caused other issues, we may see if we can install more dedicated lines to desks yet)
Analog Lines x8 in multi-line/hunt group - Telus phone company - one side of the business, one phone number
Analog Lines x4 in multi-line/hunt group - Telus phone company - other side of the business, split between both locations using the dedicated VPN, different phone number
6 Of the phones are going over a site-to-site VPN using Dell/Sonicwall TZ-105's with a dedicated ADSL connection just for the VPN which is only used for the voice.
Currently we are having some issues with echo, with some of the following descriptions from users:
- during the entire phone call, probably 90% of the time (user's estimate)
- sometimes just at the beginning of a call and then echo cancellation seems to take effect and clear it up (not a common mention of this one)
- on both sets of multi-line groups (4-line is newly installed, 8-line one is 10-15 years old)
- additional issue/description, if someone is speaking near (5 feet? 15 feet?) the person that is using the phone, they hear that person's voice echo in their earpiece as well (this was just mentioned today)
- descriptions vary from bad to "horrible"
It doesn't seem to make a difference if the phones are on the local network (to the ICP 200, on the same switch), or going across the VPN, it happens on both, and all 3 phone models.
I am new to this, but my research is pointing me towards possible mis-matched impedance on the lines from the Telco, and we either need to adjust the ICP 200, put in-line impedance adjusters such as "Echo Stopper" by Mike Sandman and hope the impedance doesn't vary depending on the day/weather since the units are a "set and forget" type of thing unless you plan to adjust them regularly, or otherwise figure out what is going on.
The additional description of hearing someone's voice that is standing nearby the phone user, I'm not sure if that's related, it may be a separate issue? Any thoughts on this one?
I've already suggested to users to turn their volume down to see if it helps, in case it's the microphone on their phone picking up the callers voice from the handset speaker, but I haven't had much luck with them feeling that it's helped much/if any.
Thanks for any insights,
Tyler.
Mitel ICP 200 AX
Mitel 5340 x2 IP Phones
Mitel 5324 x2 IP Phones w/LIM Modules
Mitel 5312 x8 IP Phones
HP 1910 Gigabit POE Switch x2 (pretty much a 3com switch re-branded to HP after HP bought them)
ICP connected diretly to POE switch, and all phones directly connected to POE switch
Computers are being passed through the 2nd IP port on the phones (this caused other issues, we may see if we can install more dedicated lines to desks yet)
Analog Lines x8 in multi-line/hunt group - Telus phone company - one side of the business, one phone number
Analog Lines x4 in multi-line/hunt group - Telus phone company - other side of the business, split between both locations using the dedicated VPN, different phone number
6 Of the phones are going over a site-to-site VPN using Dell/Sonicwall TZ-105's with a dedicated ADSL connection just for the VPN which is only used for the voice.
Currently we are having some issues with echo, with some of the following descriptions from users:
- during the entire phone call, probably 90% of the time (user's estimate)
- sometimes just at the beginning of a call and then echo cancellation seems to take effect and clear it up (not a common mention of this one)
- on both sets of multi-line groups (4-line is newly installed, 8-line one is 10-15 years old)
- additional issue/description, if someone is speaking near (5 feet? 15 feet?) the person that is using the phone, they hear that person's voice echo in their earpiece as well (this was just mentioned today)
- descriptions vary from bad to "horrible"
It doesn't seem to make a difference if the phones are on the local network (to the ICP 200, on the same switch), or going across the VPN, it happens on both, and all 3 phone models.
I am new to this, but my research is pointing me towards possible mis-matched impedance on the lines from the Telco, and we either need to adjust the ICP 200, put in-line impedance adjusters such as "Echo Stopper" by Mike Sandman and hope the impedance doesn't vary depending on the day/weather since the units are a "set and forget" type of thing unless you plan to adjust them regularly, or otherwise figure out what is going on.
The additional description of hearing someone's voice that is standing nearby the phone user, I'm not sure if that's related, it may be a separate issue? Any thoughts on this one?
I've already suggested to users to turn their volume down to see if it helps, in case it's the microphone on their phone picking up the callers voice from the handset speaker, but I haven't had much luck with them feeling that it's helped much/if any.
Thanks for any insights,
Tyler.