Hello Pedro! Thank you for your follow-up! The problem I was facing was due to the fact that I was not considering that Telmex forwards the last 4 digits. Once I considered it as such it started working. The ugly part in your case is that it was previously working and suddenly it stopped, right? I woudl recommend to check if there has been a modification in your configuration. FYR, following are the relevant parts of my working configuration. Hope it helps!: Trunk group definition: trunk group ALL_T1E1 hunt-scheme longest-idle translation-profile outgoing PROFILE_ALL_T1E1 Translation rule for main number (please replace xxxxxxxxxx with the 10 digits of area code and local number): voice translation-rule 4 rule 15 /^...$/ /xxxxxxxxxx/ Rule 15, that contains mapping of last 4 digits of main number (3400) to internal extension 400 (which is an operator person) and other DIDs: voice translation-rule 15 rule 1 /3400/ /400/ rule 2 /3401/ /401/ rule 3 /3402/ /402/ rule 4 /3403/ /403/ rule 5 /3404/ /404/ rule 6 /3405/ /405/ rule 7 /3406/ /406/ rule 8 /3407/ /407/ rule 9 /3408/ /408/ rule 10 /3409/ /409/ ! The configuration of the E1 interface is as follows: controller E1 0/2/0 framing NO-CRC4 line-termination 75-ohm ds0-group 0 timeslots 1-15,17-31 type r2-digital r2-compelled ani cas-custom 0   country telmex use-defaults   category 2   answer-signal group-b 1   trunk-group ALL_T1E1 ! The dial-peers for incoming: dial-peer voice 3000 pots incoming called-number .% direct-inward-dial port 0/2/0:0 ! dial-peer voice 3010 pots description Troncal_Telmex translation-profile incoming Troncal_Telmex_Called_15 shutdown incoming called-number 340. port 0/2/0:0 ! ... View more

Hello friends! I am currently configuring a Cisco UC560 with E1 R2 for Mexico Telmex. Following your nice thread I am currently able to make outbound calls, but incoming calls sound appear as busy when dialed from the PSTN or mobile phone. My guess is that either my Inbound dial peer is wrong or there is something wrong with the E1 service. Does anyone has a working Inbound Dial Peer sample I could compare to my own? By the way, I contacted the Small Business Support Center regarding this matter, and the supporting engineer told me that everything should be configured from the CCA, because if I don't, the support service is void. Nevertheless, I did not found a way to configure the specific E1 R2 for Mexico's Telmex through CCA, is that true? Thank you very much in advance for your kind comments! My best regards, Adrian ... View more