1000E 1000T Fax issue

[Bottylad]

I have a problem with our fax machines on our CS1000E. Whenever I am sending faxes it will handshake with the far end then fail. I can try this a few times and it will eventually transmit. The calls go from the 1000E to a 1000T and break out to the pstn there. It is a rls 4.50 system.

It has been suggested that this is a common problem and the solution would be to upgrade to CS1000E rls 5 and convert the 1000T to an IPMG?

Has anyone else experienced this and found a solution?

 

[allenmac]

I have had this problem, and have found that making sure to use the G711 codec usually clears it up.

Fax machines do not like G729.

 

[phones1]

when selecting your codecs there should be a part for fax support(T38/35), do you have CLS FAXA on those falc ports? & yes rls 5 does clear some of those issues up but has its own problems.

Remember if it doesn't work hit it harder

Scott UK