Hi all!
I have been amazed with the 3CX system in my three short days of testing. I was ready to go live tonight until I hit a major snag with our PSTN line quality.
I fought through all the strange configurations needed to get the SPA400 working and thought it was going to be great. Before leaving the office I wanted to do some test calls over PSTN to finalize everything. The callers on the other end started complaining that I sounded "far off" or quiet. I also was losing a lot of what they said and they experienced the same. I attempted to play with the gain settings and the VAD on the SPA400 to no avail. I also stayed on the calls for a minute or two see if they improved and nothing happened differently as the call went on.
I realize that QoS on our network would help, so I'm installing a 3COM Gigabit switch tomorrow that has support for 802.1p. I don't believe we have any real bandwidth/QoS issues though because calls between extensions are CRYSTAL clear. I have a VPN configured to my house, and when calling from there back to the office it was so clear that I could hear the wall clock across the room ticking.
All of our phones are SPA942s with the 4 line unlock firmware.
I have a BroadVoice account configured too, and I would rate its quality somewhere around a 7. It's not quite as clear as my cell phone or the old Nortel PSTN phone system. It's still VERY usable though.
Any thoughts/suggestions would be highly appreciated. If there are quality issues with the SPA400 I would really appreciate thoughts on what is the BEST PSTN gateway. We live in a market that will probably never have local VoIP phone numbers so we will be PSTN for years to come. A four line box would be great, but I really only have to have 2 lines into the system now so a couple of single line gateways would be fine.
Our 3CX server is dedicated and it is extreme overkill on hardware. DUAL 2.4GHz Xeon processors, 3GB RAM, Windows Server 2003.
Thanks everyone!
Andrew
I have been amazed with the 3CX system in my three short days of testing. I was ready to go live tonight until I hit a major snag with our PSTN line quality.
I fought through all the strange configurations needed to get the SPA400 working and thought it was going to be great. Before leaving the office I wanted to do some test calls over PSTN to finalize everything. The callers on the other end started complaining that I sounded "far off" or quiet. I also was losing a lot of what they said and they experienced the same. I attempted to play with the gain settings and the VAD on the SPA400 to no avail. I also stayed on the calls for a minute or two see if they improved and nothing happened differently as the call went on.
I realize that QoS on our network would help, so I'm installing a 3COM Gigabit switch tomorrow that has support for 802.1p. I don't believe we have any real bandwidth/QoS issues though because calls between extensions are CRYSTAL clear. I have a VPN configured to my house, and when calling from there back to the office it was so clear that I could hear the wall clock across the room ticking.
All of our phones are SPA942s with the 4 line unlock firmware.
I have a BroadVoice account configured too, and I would rate its quality somewhere around a 7. It's not quite as clear as my cell phone or the old Nortel PSTN phone system. It's still VERY usable though.
Any thoughts/suggestions would be highly appreciated. If there are quality issues with the SPA400 I would really appreciate thoughts on what is the BEST PSTN gateway. We live in a market that will probably never have local VoIP phone numbers so we will be PSTN for years to come. A four line box would be great, but I really only have to have 2 lines into the system now so a couple of single line gateways would be fine.
Our 3CX server is dedicated and it is extreme overkill on hardware. DUAL 2.4GHz Xeon processors, 3GB RAM, Windows Server 2003.
Thanks everyone!
Andrew
