×

Discussion Board

Results 1 to 3 of 3
  1. #1
    Registered User
    Join Date
    Mar 2004
    Posts
    9

    CMS Error: 21 when sending msg from GSM modem to CDMA phone

    Hello All,

    I get CMS Error: 21 (Short Message transfer rejected), when I try to send SMS from my GSM Modem to any CDMA phones what could be the reason?

    Thanks in advance
    Rajmathi

  2. #2
    Registered User
    Join Date
    Dec 2003
    Location
    California, USA
    Posts
    13
    Does your GSM modem and the service you signed up for support SMS? Can you send an SMS to a GSM phone?

    I have found that SMS is unreliable between different service providers, even if both are GSM. This is especially true with pre-paid services; the post-paid (monthly contract) services are more reliable.

  3. #3
    Registered User
    Join Date
    Mar 2004
    Posts
    9

    Works fine with GSM

    Hello RocketBob,

    Modem works fine with other GSM phones (able to send SMS) ... Infact I've never had any problem. I have 2 modems, one sends SMS to both GSM & CDMA, with the other I have this problem. So it has to do with the modem I guess ... rather than the Network operator.

    Thanks & Regards,
    Rajmathi
    Last edited by rajmathi_mehta; 2004-03-16 at 06:09.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
×