-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
Rich Adamson wrote: |>Hi, |>I'm thinking of purchasing a TDM400P card and was wondering if anyone has |>experienced any echo issues with phones off these cards connecting to the |>PSTN via the X100P cards? |> |>I have had my fingers burnt with a Voip phone > X100P. | | | I replaced two x100p's with a tdm04b 4-port fxo card, and the echo problem | with pstn lines are absolutely no different; echo is still there and I've | spent a substantial amount of time attempting to improve it (as an ex- | telco engineer). Three pstn lines from two central offices all identical. | Attaching these same three pstn lines to a Mediatrix 1204 totally | eliminated all echo, however the 1204 had other problems that caused | me to return it to the reseller. Tried ever combination of echo cancellation | options in Make and *.h files that folks have suggested, problem is | still there and most disturbing during the first 15 seconds of all calls. | | As a non-programmer and * user for over nine months, its my opinion (right, | or wrong) that past echo problems have had two sources; one from pstn | mismatch problems that have been heavily discussed since about September | 2003. The other source has not yet been found/diagnosed and "seems" to | be system dependent (and its not irq related either). You either have | it or you don't, and the few developers that have either the x100p or | the tdm card installed, don't seem to have the problem. Therefore diagnosing | the root cause is still waiting on someone with the problem _and_ the | programming skills.
I absolutely second this notion.
- -- Jason A. Pattie [EMAIL PROTECTED] Xperience, Inc. (http://www.xperienceinc.com) -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) Comment: Using GnuPG with Debian - http://enigmail.mozdev.org
iD8DBQFA2FbuuYsUrHkpYtARAgePAJ0ed3quJ52XJzpZyo2bWV7lRskRoQCeKvvF hb+eDPmdJw23db1Jr1S958Q= =7sgI -----END PGP SIGNATURE-----
-- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. MailScanner thanks transtec Computers for their support.
_______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
